EuropSsdMS Paienlamr
(12)
Office curopiendcs brevets (11) EP 0 657 297 B1
EUROPEAN PATE^^■ SPECinCATION
(45) DateoffiubScalionaixlmenlion
oltiie grant of the patent:
3a07.1997Bullelin 1997/31
(21) Applic9libn number 93203473J
(22) Dateotfiling:iai2.1933
(51) H. Cl.«: B41M 3/14. G03C 5/08,
G03C8/42. G03C8/28.
G03C852
(54) Security document liaving a transparent or translucent support and containing interference
Sidieitialsdolanient mh einem durctisichfigen Oder durchscheinenden Tr^er und mit darin
Document de s^curitd ayant un support transparent ou transJudde et contenant des pigments
(84) Designated Contf^cfogStUes:
BECHbEESFRGBUNL
(43) DateofpubScallonofapplication:
14.06.1995 Bu»e6n199S24
• AGFA^SEVAERT
naamloze vennootscfiap
2640lllloitsei(BE)
• HAIKNIALE BANK VAN BELGIE N.V.
1000Bni5sel(BE}
(72)
Sepleslraal27, B-2640 Mortsei (BE)
CQ
14,B-1(IOOBrussel(BE)
) Rderencesdled:
EP-A- 0317 514
DE-C- 62 053
GfrA- 202702
DE-A-3810015
FR-A-2429292
GB-A-2035587
• PATENT ABSTRACTS OF JAPAN VOL 8, no. 210
011^1647) 2$ S^pten)i>er1 964 & ,)P-A«9 09B
891 (PAINIPP0I4 iNSATSlQ7Jtme1984
• MTENrABSniACTSOFJAPANvoLIO^nam
(M474)(2172) 30 April1986 & JP-A-60244 588
(KAZUHinO NARA)4 Decemlmr 1965
• RATENTABSTRACTSOFJAIVUivoL10^na19t
(l»49!g(2247} 4 July 19B6 & JP-A^ 035 985
(DAMCHI SEm 20 F6bruary 1986
Note: Wtltin nine months from the putiEcation of the mention of the grant d tfie Eirppean patent, any person may ^ve
notice to the European Patent Off ice of opposWon to the Eunipean patertgramedL hiotice of opposite
a wraten reasoned statemenL it shaO not t>e deemed to haire been filed inll the opposiliDn fee has been paid. (Art
99(1) European Patent Comenlion).
EP06S7297B1
DescripBon
1. Field of the Invention
5 Thepresent invention relates to transparent or translucent sedmly documenb that can be.verifiedon-thnr authen-
ticity axJ are protected against counterfeaing by pholo«)pying.
2. BadigFound of tfie Invention
10 Security documents that must tK verTiable on their authenticiiy^are ag. all kiids of identirKation docunents such
as passports. visaSk identity cards, driver licenses, bank cards, aedil cards, security entrance cards, and f^
documents such as tnnKnotes, shares, bonds, certificates, cheques, lottery tickets and all kinds of entrance tickets
such as airplane tickets and railroad season-tickets.
Nowaifeys. by the availably of niarkedly niproved bbck-and^
IS easytooopydoonnentsattiighquaJityhardVtodistinguishfrDmtheorig^^
lb protect Iho abora mentidned docunents againsi fraudutent aReralions and reproduction by photo-ccpying' dV-
ferent technk|ues aro used such as ilM rnelMandrafirig or gluebig Iher0o of piepiinted plaslic cver^
writh spec^ Ms; theappGcalion of coatings or layers iofcuiaiifjle loaded with ina^
ing or inetaltring the sifcstrate of the documents; iricorpoiM n ghologranre;apply^
so as, security ttveads. Sght cfiffriaction marks, Squid aystal meiks anttor substances called nacreous, iridiscent or
interference pigments.
In a particular case discksed n U&P 4.151 ,666 fight-bansmissive pigments serving as diHuse rtiHectors are
appied tif prMing to form a verification pattern in a bnwtided idenlilicainn caid (LDL card). In the specificaliori of the
saine IJS-P the tse of riacreous piginerits iri verificaikm paaerns has been dese^
25 peailescentpiginentshaveSght-fefleclioncharactefislksthalct^
effect d changtog color with viewnig angle rnak» «)al nacreous pigments repress
built in a verification feature assodaled with a noiKopyable optical property. '
Interference pigments are in the form of Sghl^ellecting oyslal platelets of appropriate thickness to produce odor
by Merferenca Ibese pigmenlsedM a cotor pfv that verges on irkSscence ^
30 alow only.the copying of a.single oohir. whereas other cdois appear under dilierenl angles of reflectkxiL holher words
these pigments show another color to the human eye depending on the observalicn angto: High nacreous luster is
accompara'ed by high specular refledanca
In most light interference p^nents the lidunis&ion oolor fs generally the oornplemGnl of tlie reflectkm cotor.
Observed in transftisskin, some particular tSfit Mertarence pigmerte having more prnwunced covering a^ect
35 shew a partxvlar greyish cok)rwtBleobsen«d In reflednnmodetiiey have a rnore pronounced ootor-^
their specTic built up and composiUon.
Transmisskm cotor of lighl interference pigments is much weaker than reHedkm odor, whidi odor seen ii the
. reflection mode is called hereihalter'^norrnar cotor. [reLIAsr^
(Pearlescenl) Pigments and Interference Pigments by LM. Greenstein Henry L Matfin Laboratories Iteprinled from
« Pigment HandbooK>M. I, Properties and Econonfcs; 2nd Edilton. Edited by Pder/L 1^(1988) by pennte^
John Wiley & Sons. Inc. Itie Mearf Corporation. 41 Ead42nd Street. Mew Vbrit. N.Y. 100017, pi 5 and q.
In interference, the reflection and transmiss'oh cotocs vary with angle of inddence The reflectkm maximum and
ni'r«num sMil to tower wavelengths as the angle d inddenea toeases Orel the aboi«
lefirt^ PL & Vbriatton in cotor with angto of ifxidence md cbsen^
« chfomalismlreL Johnston. R:M.Cdor Eng.; 5(3X«47. 54 (1967) and Hemmendinger.H.an^
Gontospedrophotometer lor (>)tor MeasuemertsT in Cdd 69 (M. FWi^
3. Objects and Summary of the hwentkn
so
It is an otjed of the present invenlton to pnwide a securi^. document having a transparent or tiansl^^
and'oontatatog througfil Ihe presence d Oght inteilerencei^Bmerrts a verificatton feature
tographto techniques ami wherein there is no need for spedaized devk» a oondffions to veri^ the 1^
authentkity.
ss His a parlkularobiedd the presemiiwenlton to proMde a security documem having a fe^^
support and containmg at lead one image or pattern in oorjundion wilh nilerfbrence pigm^
that can not be copied pholographicaly.
It is a speddobjeddttiepresert invention to picwkte a security documert having a transparent wbans^ -
' stt)portandcon|irisingal^indudingaphoto9aphicallyoblainedportraithconju^^
2
EP0G57297B1
ence pigments that alkw ea^ verTicab'on by the laM
Other objects and a(^al^lages d the presert iwert^
examftes.
In acojnJance wift the present invention there is pow^
arsl a transpaiert or transhjcent siwort arxf at least one image or patleni seivi
lerized m that said docmwrt oinlairis at least one right irterference pign^
on at least one layer oi said document andfor contains said pigment in said support
By transparent or iranshxxnt supporr inthe documert acconfng to the presoit invent
suppcfthavingavisUelQhi^ilodangcapacily less than 80 %,pi«(erd)ly
that are biherenlly colored or have oblaned a color ly iKsr^^
4. Description of the drawings
Rg.1represemsaschOTabc sectional dravwngolasecuri^documertaccoidi^
light Inlerteence pigmenis A are presert unrtorn^y in a 1^ on one side of a tran^
ence pigments B diHweiil h color with respect to pignfienis A are presem imi^^
support and said docunert contains a photograpKcaly obtaiwd image PH h «^
. FiB.2fepresenlsaschemafcsectioi»ldra*ingolasecurilydocimiertaec^^
ligM inlerlereim pigments A we present imitori^
menis BdWerert in color vyih respect IB pigments Aare present irilbn^
the pigments A have underneath a pattern piirted wHh "omimonr s^
ence properties.
Fig. 3 represents a schematic sectional draviring of a securSy document accofdirig to the pr
at one side of a transparent siwort TS a layer containing Biterteence pigment
containing common lighlHreflecting pigments a At the other side d said sup^
mat pigments R is overprinted with^a pattern containing 1^ Merference p^ino^
Rg. 4 representsa schematic sectional dtawiigrtasecirtydocuiiertacco^
patterns containing 6ght interference pigmenis A at one side of a transparentsupport TS are printed owr (1) a pattern
contaWng "con»non- Eght reflecting pigments R1 o( which the color is oomplemenlary to the color of said pigments A
when seen with reflected Bght a pattern comprising -common' Sght reHedirtgpigmerts Rl nixed with colors
reseemorphosphorescert pigments or dyes RF.and(3)pattemscontartngsol^
that may be white Iv inspection with vis*le Bght tJrtemilcolored Bght when ex^
of said support TS Bght irterference pigmenis Bare printed over (10 an opaque pattern coiW^
(aluminium or bronze flakes) M. (2) a pattern comprlBirig melaBfc p^menls M mi)^
ments R2 having a color coniilemenlarytothecolorirf said Kght Merferencepivnents B when seen^
and (30 a pattern comprising solely l^hl reflecting p^imenls R2 haring a color coirplei^^
inteilerencapigmentsB when seenwhhreilecled light
5. D^led Description of the Invenfibn
Alayer and/or pattern oontairftig said Bght interference pigments (same orttflerehg itnybepresentatbolh sid^
of said transparent or translucent support
The security document accofdiig to the present inventioo m^wrtain in fto same patt
of (Sfterent Bght interference pigmenlSL
In a particular enrfcodimert the sivport itself conlaire said «gM Weilw
exhiding a men of a themioplastic resBi havhg homogeneously distrlwted
ference plgmerits. or is produced IV coaling a resin solution havhg said p^
coating by the evaporation of the solvenl(s) used.
An image or pattern present in said documertmqr be fomied by printing technic|ues.hclu^ non-impact printing
techniques and photographic technicnies by wWdi is understood herdn lhal a visuaB^
obtainednnsaiddocumentviaaEghi-paitenitiansmitredorrellectedbyanoii^
the document of the presert Bwention by tha presence of said Merlteenca p^iments
pigmenis) has at feast in certain areasadillferert color when viewed wifcl^aMtransn^
•son with Bght reflected by the document and has alleasthcertahareasadBferertcdor when
tnodefromfroht or rear side. These properties fonnverncalknfealureslhBlcmM
yingmachSnesandaltoweasyveiftationbythBnakedQeolthesecurilydocumenli^^
F>refenedKghtirterlerence pigments are titanium dk»idfr«»ted mica or olherni^^ .
wWch the metal oxite has preteraUyarelractive index eompa^
EP0657297B1
The platelebolmetelciWe coated irtapigmenls haw Ihrw
of the mka platelels a very ihh coaling of melal axkJe is present
The nwe t)riliart Weiferenre pignrenis approach melallte
at)sorp1jor>cdorants.r»(VntereadBy lends itseH to ihcorporafi^
to the Tipz layer, for example ihnparts a yeOowr color which in conjundioh with a yeHav interference color aeates gdd.
When FejOa is used in place d Tit^ as the oxide coaling on nica.- these pigments have
because of Ihe iiherert color ol the FeaQs. They range from bronze to deep copper-red and havB a
Th e prepaialion ol such Whd ol pign^eite is descrlwd in in the already menlionrt
Pigmertfs and hrterlerence Pfgmenis', pi
Mka pjgnwnls servng as a silKiQte of the interference coaftigs are a gitotp d h^^
ate with pbly morphology and perfect t»sal (ngcaceotis) deavage Examples of siitable micas are e.g. muscovite
KAy/USijOio) (OHfe, paragonite NaAyAISiaOio) {OHfe pNogopHe K(M9.Fe) (AlSiaOio). (Otfe, bidile K(FeJlta)
(AlSijOio) (0H)2 and lepidofite K(U.AI)2.„.o(AIi.w)j%m.Aq) (OHfe «a.
Delalb AoU the applicaficin d melal an*or melal oxide coalBigs on the mica platelets are f^
3.087^7,4.434.010and5.059245andi(ipublishedEP-Ar45851.EP-A-313280,DE-A-t1 65182 DE-A-3237264
DE-A38 25 702 and DE-A36 17 430 and DE-OS 41 41 069.
In a prderied ernbodhwnl accoidhg to fce present iweniibn mteiference
described h pubRshed German patent s^ipScalion DE-OS 41 41 069 are used. Said Ihtederence pigmerri^ caled
"Glanzpigmente' according tosaid DE-OS are coiif)osed d silicate platelets coaled wilh eilher :
A) a firsi layer d highly refractive metal oxide, and
B) a second Nack layw essenfaJy consisting d melalBc iron, mol^
A) aflistlayerdhigMyrdractive metal onde. and
B) a second Uack Icver essentially consisting d carbon or melal, and
C) a third layer d highly refractive metal oxKle.
By the presence d a semi^ransparert carbon layer said platelels have a hi^ chemlW resfclan^
layer is obtained by themid deoomposilk)n d aygeiHanlaining h^
atoms contain at least one ODcygen atom fegi as h carbohydrates such as soibaoL
The m^ layer B) can be lonned iri a metfun d inert gas from lhiiasi)h^
e.a metal carbonylconpounds.andthernelal oxide layers A) andQarefc^
able metal compounds in the presence d oxygen water vapour or mixtures thered.
The ffest layer A) consists eg. d the oxides d titaniunv a'reonlumnbi andtor hm.
Mca platelets double-skle coated with one or more metal axidelayerslbr use as interference ptamenls are com-
mercially avaOable e.^ under the badenames IROOINE (E. MercK DamisladO, FLONAC Of. Fori. Fnland)
MEARUN fihe Meail &)rporalion. New Vbeft USA) and RUIOSECUIffi (BA^^
irrterference pigments showing vide^ red, green, yellow and blue colofshrell^ •
market
Holdinganinterfefencepigmert-coatedtransparems^iportat90*inawhileligMbeamftetr
begreyishirellowtosIghtlybrownwhichisatotallydWeremcolorvrtKnseenint^ Sudieffed
was seen as wen in hyttrophifc cdtoid coatngs containing said pigments as in hyAophoUe vara»i W. These di^
ferencesdcdorinrdleded arid transn*ted light eanndbephdJHwpied and Ib^
turei
Morecw.k)oWf)gatacoatedbluemlerferencopigmertlByerii«lerd^
■■~*er a reflecBon angle d 90* wiJ at a rdleetion angle smaler Ihan4y turn hto ye^^
i,«,inrto„h«o«r agreyishshade.whereasthevioldandredpigmenlsshowabiDwnisl»<wy
the green ones turn magenta.
deferred interfertixeplaldet-^fpo.pigrnents for use accoirtng to the present
1*"^ Pi^ferafc^rbeiween 5 and 200 im> and n^
rtefl6rencepigmertsispfB«Brd)lybelween0.1pmand0.6MmandmoreprelerdU^
«ncrdertoo«BlfispeciaverilksrtiondlKteonderullr8^
in admature wBh fluorescent or phosphorescent siJbstances and optical brighJenfcig agents.
By way d exalr^Jle the BgW interference pigments A d the above drawings are bluB 1^
sud) as PAlJOSECURE(tradenamedBASF-Gemiany)pigmert code EC1408whk* shows whense^
mode a vivid blue cdor. Seen in reflection thdr cdor changes in shade by changiig the obso^^
obsewed -n tnusmission through said iransparert sUstrate saw ^
becomes Goniiiemeniaiy to bhie; La yeDoML sKghtly darirened wilh a brown sh^
EP0G57297B1
itnpurities. A yeOow Sght Merference pSgment such as IROOINE (tradename of MERCK - Gernany). pigment code
9331 has when oteeived h reflection mode a yeOowr color; seen in tra^^
convlementary in colorJ.& Uue. TNs is in acraidance with the genefal pro^
changing their color conf^emenlarily.when diang^ their mode c( viewing gong from
5 Tests hara been carried out in printing a security pattern on a transparem substrate in such a way thai
a prmling pattern was printed with Uua fight interference pigment (e.g. RAU0SECUF1E EC 1408 or IT) 41 87 of BASF -
Germany) and another part was printed using a yellow mterference pigment (ag. IRIODINE 9231 of MERCK • Ger-
many). By chan^'ng the viewing conditions from transnission to reflection mode tte
their color convlementarily. so that ttie colors became inverted, which is as already been said.
10 reproducedphoJographicallybycoloreopyin9machines.Commonxerogiaphiceopy^
a wNte badigroind (the color of the side of the cover of the machine contacting the ori^^
The nght intoference pigments that face the UdM source have high reflectance and show their nonnal color, whereas
the 'complementar/ color is reproduced with transmitted tight rdteded by said cover.
Said property provides a strong security feature wluch makes e.g. that when a yellow fight mterference pigment
15 badtground is sunouncEng an inlbnnalion pattern printed witti a bli» GgM Merference pi^
rnachine operating with transmitted figM(lhat is reflected by its while coveOwOlpra^
mation in yellow sunounded by a blue badcgnwnd which Is the oonfdemenlaiy ii ^
in reflected fight not passing through the document
Rirlher it has been fotnd by us that when copying a transparert documert printed with light iriterferem
20 and overprinted wfth a fine gulBoche design with comtnonBghi reflecting pigmem being no lig^
the color d the guipche patteni in the photocopy is differem whether (1) the copy is made with the from
transparerd document (originaQ dveded bwaids the light source of the copying machine or (2) the copy is m^
the Eght of said source dSrecied through the rear of the transparent document fomids the informat'on pattern and
image background at the front side receivirig reileded Eght from the white fight reflecting co^« of Ite
25 intherrstcasesaid'connion'pigmentsccntainedintheguiDochepattefnarereproducedwilhthdrinherM '
and the light interference pigments are reproduced in the transnttsskm mode in their complernenta^
In the second case the photocopying machine does not see in reflected light the pattern of said 'common* fight
' jdlectingpigmentsthathavebeenprintedontopdtherightinterferencepigmentssothatth^ararotreproduc^
more, whie the fight interference pigments ronain copied in their coflnplemmtary color.
30 the 'common* fight reflecting pigments can be printed underneath or above the light interference pigments.
Thus, when in the above coniiinalicn of infonnation pattern and bachgrouid a fine gidDoche design having ag.
fines 3 microns wide, is printed wHh comnnn yeSow colored pigments (yeScw fight rdlecting pigrne^^
interference pigments the differences between the copy and the original wil become still more outspoken h that, the
color of the guloche fines wiH be reproduced correctly but wifi not be detectable against the yeSow pattern of fight 'nter-
35 ferenca pigments seen by the copying machina
In the enixxfiment DIusiiated in Rg. 3 the fight reflecting pigments R can show a rainbow effect (are iridiscent)
wherein one of Iheir kMcom colors has the same hue as the cdor of the fight interference pigments b^ printed on
In the embodiment aiustrated in Rg. 4 Ae fight reflecting colors showing rab^^
w uments) are used in a printing ink containing metafile powder (ag. alum'nium or bronze). Printed underneath the Dght
interference pigments the metaOio powder being bpac|ue blocks light and prei^enls copying d infonnation present on the
other side d the transparem support Opacifying from and back images n»ay be primed on top and'or underneath the
. patterns coritaiiiaigfigMiriterfererioepigmerils>lhepririling on txrtt) sides d the trarispveiitsif:po(1rnayl>e
trorit/bacfc re^stration using a therefor adapted printing machiw such as a 'Simultan Press* wh'ch is known for printing
4S security documents.
' When tfie desl^i d the document is arranged in such a way ttiat the fight iiterference pigment pattern does not
cover complelely the printing pattern d the fight reflecting pi^nenls indoneath, the observafion in reflective nnde
shows the fight reflecting.i^gments in thev own cokv on ttie front or rear side d 4w document in t)^
only. In the covered zone the light inlerference pigments show in rdlective inode t^^^^
50' On inspection in.transmission mode (hofcAiig the docunert to the fight) or copyi^
tenisdconimonligM-feflectingpi9nentsfrpmtrontandrearEidedthedocumentareadded(conU^
an unintemfited arra in the field d figM interferencepi^nenls showing their own CO
d said con^lementaiy colors in overiapping zones, which may resiih in a conSnuous grey area
taiy cdors earA reprcsem a omplementary part d the visible spednnn, as is the case e.g.
65 zonecontairtirigyellow-reflectingnghtinierlkencepigmenlsandazoneconlainin^
ments.
tigM Brterlerence poments niay l» mbed with fluoresced or phosphoresced pignnenls wit^
emitted thereby. Light interference pigments have always some ttansparen^ together with their high specular refled-
anca
5
EP06S7297B1
Aocordb)g' 10 one eflnbodknertlheabcra mention^ photogiaphically obtained image or pattern is produced by
means ol a Uack-ancKwhite or colour devdoped pholoGensitive siver hafide dUrecUy h a Eght-sensilive material itseH or
HI a non^-sensitive inage receiving material tiaving a transparent support
According to another embodiment the aboi/e mentioned photograplvcaOy obtained
means of a non4ripad prirting techrnque In vrfiich analog or digital inpM signal
image or pattern stem from Sght-infonmat'on originaling from a visUe oric^, wtvch fight-information may be trans-
fonned into electrical signals that can be transdix»i and skved. ag. on magnetic tape or op^
inal may be an object or Rving being w an already fcrmed photograph ol these.
^sunef ol noninnpact piinlHig techniques stKh as electro(photo)grapMcpri^ prinShg, photochemical
piMHigandlhemal transfer piidngis given by JeromeLJoh^
- trvihe; Cafbmia USA (1906).
In accordance wim an embodiment according to the presort invenliori Ihera is provided a doci^
photographically obtained rniage or pattern and unifomily distributed iriteiference pigments of a parfoilarcolor are
preserd in ttiedocument h conMnation vyith a printed pattern conlaMig irterf^^
the color of the uniformly distributed irteiference pigments.
h acconlance with another eriAodknert accOT&ig to the presort irm^
a photographically oblahed innge or pattern and having at each skle of its transparert
wherebi Ueiference pigmeils are dsirhrtd
a diHerert color by the preserxn of differert nterference pigments.
In acoonlance with a further eiitxKlimert accordng to the presert imenSon there is provided
uniformly (Estraiuted interference pigments are presert In coRimation with pato
reilectRig pi{pienls or dyes or white Sght rdlectiig pigments, &g. TiO^ 11n oolo^
the copying angle ^preferably the same as the color of said prirted Egn-afasorbing substances preve^
cesM photocopying of the prirted intormaikM that remains still readableby the hunan «ye under anothff
angla .
According to sim another embocftnert h a documert ol the present invenb'pn a pattern of printed interference pig-
ments is presert underneath andftir on top ol a layer or support hamg a color substantially the same as the color of
said pattern containing said interference pigments when seen in reflection or transmssionmoda
Accordnig to an errbodimert in the security documert according to the presert invention differert irtei^^
merts are presert urtfMy each in a dttferert teyer rt opposite tides of s^ siv^
has underneath andfa on top a paltenicortairiiiig common BghHellectfagpigmeiitSM
ference properties, and having preferably a color subslantialy the saine as the color of rt least m
p^mertswhen seen in relleclion or transmission moda
Accoidirig to another entx)dimert in the security documert accoidihg to the presert invent
containing conmn Sgrt-rdtecting pigments andftv dyes B pres^
tern containing inleiference.pi9neiils.
According laatUtherentwdhMrt in the docunert according to flw presert invent
directly fay sputtering with a thin metal odde layer or has been coated with saU metal cw^
pattern of sakl Igrt Merference pigmerts and/br coating or pattern ol ligM refl^^
ence properties taWng care thrt the thus coated metal oxide layer has substantially the sanw or color coirp^
to theoolor of said pattemwise applied pigments.
Accortfing to a special embodimert the documert accorcfing to the presert invention has on t^^
side ol ils support gnderneath andtor on lop therert unifoimly or patternwise appl^
rt apiidedguitoehe Ehepallemwih rainbow eife«
astDhaveeneormorerttheiairibowootorslhesameasthemniialoroonvIm
ptgnwrt&hapailiculBrcasesaidoneormorartthsrairtxwcotoisisoblatoedbyprinlb^
In another entofimert fluorescert or phosphorescert pigmerts have been ni)^
mentsantforwMi said D^rellectbigplgrQenfe^iaig said rainbow et^
is oblamed by printing a transparert vamish4oaded.wi»i a f luoresceht or phosphorescert picpnent
Accoidihg to a stil ttrther enMcfimert the documert aocortEng to the preset
pigmert(s) that is ^) mixed with one ol said Ight reflecting pigments and/br ntced with said fi^ nterference p>
■menlswhefebywheri.aqp06edtoullravfolet^saidikorescertpigmenl(6)show(s) fight of two dHierert wavelength
ranges one d whichbdWefertlircm the vvavetength range ol the coloisrf said ligM
. merts when Ihese are observed under visible Eghi conditions and Ihe other conresponds wim the nomsl or
men^vy color of said vderierence pigmertsw
In a partieuiar eniMdImert a gidloche pattern with tambow eifert is prirted n
the fhirt^rearsidertthe support the ligMrdlectingpigmertsshowingrairtxweil^
plemertaiy color viiilhre5pedtothepigmeiilspfirted.brt have at one sideacolor the same asta
ligM irterference pigmerts, and iMieran parts of said guinoche pattern rt ei^
EP06572g7B1
or prHed pattern or com^ele a printed pattern.
ha partktibriyinlerestkig ennbo(fiinemme(kx^^
at least partV covering eadi other and pattenis each ooiilaih (a) ^
slruction and connpoalkm of wIMi is such that th(^ show a diffi^
5 lion angles and wherein the printed pattern nnstffiinoletrom the observer has h^
printed thereon which is more transparerit. hereby obtaining a document that shows in the overlapping pattern area a
continuously changing color shitt by changing gradu% ttte observation angia
A layer conlairtng uniibfmly cfislribuled Bght interference pigmerts may be applied ly coaling a coating Gquid con-
taining saki pigments in dispersed form and a dissolved binding agent or
n wilhabintfingagentinlheformofalate«/Wercoalinglhesolveitor(lspersingl^
oratioa Any coating techrvqMO for the appGcatlOn ol tton Equid layers may be used as is la«^
manuiacture of photographic silver halide emulsion layer materials, e.g. doctor blade coafing, gravure roller coating,
meniscus coafing, air knife coating, slide hopper coating and spraying.
According to a spedal coating technique the light interference pigments are applied in a radia
15 bindersystemwhereinag.monomefsactassolvenlforpolymersOTprepolymefsasdescribede:g.inpu^
0 522 609, so that after coating of the liquid ooa&ig corrpo^lioh no soNM
In accordance with a particular embodimentunifonn|ydstribuledtnieri^enc(! pigments are applied in alayer that
is transferred by a stri|pping<>ff procedure to buiS the dqcumetil of tha piBsenl'invenfi^
in pubished EP-A 0 478 790 but is applied thereh tor conlfDBing the whiteness of an irage p
2D svppcrl using for the strippingK)ff and tiaieferprocedum a teriporaiysin»rt coated wh^
sensiSve layer containing fluorescent whSermg agent(s) in a tqidrophak: colloid Under.
Acconfing to a spedal enixxliment the iglri interference pigments are qipBed in the iom
wherefrom by hot transfer ttie pignnents are transferred unifbimly onto the substrate of
Sta anottier coating techr^e suited tor uftiformly .applyiig said pigments is by
25 ahol^n^.resinlayerwhereintheyareinfiregnatedfaypressireandheaLOntopolttifipigmefltsanadh^
may batvpBed to improve adherence to the selected substrata Itiat'sitetrata may have hydrcphiSc or hydrophobic
surface propertiesL
Spraycoataig may be applied for ravering the whole surface of the sU^^
irterference rMxw-^feds\ By using varying mbttures d dHferent interference pigments the int
-30 be made to decrease gradually while an increasaig color intensity of anirtherpigmerit comes
see the rainbow effect varying accoiding to ttie perception angle and wffl recognize ttie basic color of each- of the
sprayed pigments, but a photocopier operating with a fixed copying angle wiB only repn^^
brown color and not the colors of the interfererwepignneni s th a i can be seen irterdHtereminspecto
The interference pigments can be used for pigmenfing a conmeicial coating varnish which inay Uien be used ft^
3S pr»coatingasecuritydocumentsubStrate,as.opaqueresinfilrnorpaper.lhecoBlingmayproceedwitt^
nishing or impregnafon machinery instead of usbig priming presses.
As alreaidy mentioned herein the unifomriy applied interference pigments are advantageously combined with
ImagO'Wise or pattern^Mse applied fiterference pi^nenls of another
The image^wise or pattern-wise appTicafion of interference pigmchls proceeds ag. by printing with an ink oontain-
40 ing said pigments. Suled printing processes are ag. piandgraphic offset prihb'ng, gravure printing. intagKo printing,
ecreen printing, fiexograptic printaig, reOef prinUng. tdmpon printing, InkJet printing and toner-transfer printing from
dectro<photo]graphic recording materials.
f=br use in prihSng on hydrophifc layers w substrates the ink contains for cDcamf^
of ttie interference pigments in a soliilion of ceHufose nitrate on a polyettvlene ether. Suc^
4S hydrophifccolokf layers such as gelatin<x)ntaiwiglayeis iced in DTR-re^
appM with a commerdal screen press using a polyester screen «ab a 77 and 55 mesh. The interference colors gi^
ually appear on drying the inic
Thus applied ink patterns on a hydrophilic iniag»receiving 1^ for DTF^InBge production remain unctenged dur-
ing DTFt^jrocesdng.
59 - Thepresenceof ttieBgM hterference pigments in one of the layers of the opaque security documert does not
affed the possiiiSly to print ttiereon further 9aphic or alpha-numerical interim
For easy visual verTicatkm the EgM Interference (rigments are presem preferably in a securSy do
erage d 0.3 gAii? to 1 0 g/hi? and nnore preferably in a coverage b^ween 0.7 gAn? and 3 gftn?.
The prinfing of a li^ imerference pigment-containing pattern may proceed on a substrate alrea^
BS a hbk)gram,light-<fiffraction pattern, melalfc pattern hat can be viewed throughtttw
b'es of the interference pigments are added ttiereta.
primed pattern containing interference pigments forms noobstacfeforagood adherence virittilami^
resiniw covering material By proper selection of the bnder of the ink it can be ocHnelted MM
inaledtlierelOL
7
EP0657297B1
A(xmimg to a partkular enibodbnent ttie HgM inteffereixn
poa &a polystyrene siippoa wherefrorh the ink layer can
a ghied andpr^xinted substiate of a security documenL The ink layer, appSedoyeraO orpattenvwise; after leaving the
tenporary support covers underlying pre^'nted data on the pennanent support Fbr precniing fiauduteni copying
5 these data have the same color as the Meiferencepiginert layer when seen under the copying an^
image contrast is availaUe so thm copying of the pr»p^led data is no longer posGilift
pigment-containing ink layer thai is ttanslucert the underlying data can l» vteuaty
the perception angl&
In acooidaiiCB with the precWing embodiiieiii a securi^ documerii according to the preset
10 asiacaid,isprefeiabiy'nthefc]nnofalaniihaiainwt«^
tectum resiwus sheets. U>. card bmiratesmay bebuR upasdescrt)ed ag. in U&P 4.101,701. US-P4.762.759. US-
P 4^533. puUished EP-AO 348310 and pubfehed EP-A0462330. By lamination tamper-proof documents arepro-
duced vrtichdo not alow the opening of the laminate wShout damagng the image contained therein. Dw destniction
of the sea! wil leave visual fraude traces on the security documenL
IS InaocoribncewilhafvstmiDdeintheseairitydocimientaccordmgtothepresentn^^
togr^jh h the form of a sSiw inage is iormed by the silver satt diffusion transltf prq^^
Accordbig to said process dssolved silver haSde salt is tRmsieired
development nuclei containing layer, for reducing therein tnmsleirediAfer salt said development nudei containing
layer contains itseU and/or in an overlaying ancVor an undeftayaig layer unildrmly dfe^
20 pigments.
T1» light interference pigments may be presert either in ttie Bnage^eceiviig layw itseB an
top layer and/tor in a sUMig layer co^wi1g the support
ThB presence of a dried waterHmpermeaUe ihkpatiein on the image-receiving layer blods DTR-fenagefonnatiorL
Thereby it is poss2)le to anange agi fine rm patienK such as guiDoches h the photograph cr
25 tionalverreation feature
The prfnc^ of the DTRivocess are described in ua patent Ma 2.352.014 ol Andrd Rott, issued June 20. 1944.
Accortfing to sad process silver conf)lexes are image-wse transferred t^ diffuson t
to an iiTBgfrfectiwig layer, where they are corwerted, inihe presence d deiwtepment nudei. »^
tMspwposa an image^M■se €5?x)sed sh^er haBda emdsion layer is develop
3d the^esenceof8S(K»]led^^^haEdeso^irenLlnthee9(posedparteofthe6ih«rhaU
is dmioped to meiaTjc s3m so that H cannot (Sssoh^e anymore and consequently cannot diffusa In th^
parts of the siverhaUe emulsion layer the saver haSde is converted ifito soluble 81^^
haHe ccmplexing agent, acting as s9ver hafide solvent and sod cofifiexes are transfened
receiving layer being h walerperme^ contact vvith said emulsion layer to fonn by the catalytic a^
as mertnuclei,ins»«alledplvsicaldevdopmentasi)ver-Conlainingbnageintheimage-r^^
More details on the DTR-process can be found in Thotographic Silver HaSde [^fusion Processes' by A. F)o^
E. Vfeyde^ l=beal Press. Londoa hlew\brk(1972).
In admlanceiMlhasecondnxxte in the opaque security dpcumert according to 8)6 present irv
tograph in the tonn of one or more dye images is fomied by ihe dye dHfuskm transfer process (dye DTR^ocess)
40 vrtiere!ntheimage^msetransferofdye(s)iscontrolledbythedevelopm^
taiyer(s), and wherein dye(s) is (are) tFaristenedimqgewise in a spedal image receiving 1^. cdiled moidanl tayiv. for
f bdng the iSfes, said mordant layer and/or an overlaying andfor.an underiaylng layer containihg unfornily cfistrtxited
therettvough said interference pigmentsi
Dye d»usion transfer reversal processes are based on the mrage^wise transfer of
« image-wiMe^xisiedsilverhaBdeemulSiorirnateriallntoawaterpermeaUeimage^eceivi^
for the (iye(s). The inagewise diffusion of the dye(s} is (»nti^
exposed sihrer halide emission layers, that for the production ol a mull^^
and contain respectively a yellow, magenta and cyan dye inolecuie& A survey of dyedl^^
esses has been given Christian a \to de Sande h Angew. Oieia - El BiqL S (1 963) rf 3. 191-2^
» ulaiiy useful process is described ft) US-P 4,496,645;
' i%r. use «i dye dffuslon transfer photography the t)pe ol mordant
danted If aeki dyes are to be mordanted, the Bnagerecieiving layer b^ a dye^^
meric mordants such ks polymers of anAioguanicfihe derivadves of vinyl methyl ket^
2,882.156, and basic polymeric nwrdants and derivatives, ag. poiy^-^m^pyriduia the metho^loluene sulphonate of
ss poly^2-vinyltV>^s and smlar compounds descri>ed in U&P 2,484,430, and the compounds descrbed in the pub-
lished D&A 2,009,498 and 2,200.063. Other mordants are tong«hain quaternary ammonium or phosphorium com-
pounds w ternary sulphonilim conpoimds, ag. those descrl>ed in US4> 3,271 ,147 an^
ammoidwnbronMa Certaih metal sans arki their iiydR)^
nnay be used tea The dye mordants are dispersed or rnolecularly divided n one ol the usual i^dr^^
8
EP0657297B1
image-recemng laytf. eg. h^eiaea polyvi^^
In US^ 4.186,014 catwnk: potymerk: moid^
ftg. sutMhic acM satt dyes that are image-wise reJeased by a redoK-readfon described eig. in hfiublished EP^
O.004.399 and U&P 4.232,107.
The DTR process can be uliGzed for reproducing line originats &g. printed
continuous lone originals, ag. portraits.
By the iact that ttra DTR-image is based on diffuaon transfer oi imagng ingredie^
optional^ presem covering layei(s) have to be waterpermeabia
The reprodUAiori of Uack^ndiwhile conlihuous tone images
material cap^ of yieidnig mages Willi consi^^
tibn tff ensue the correct tone rendering-of oinlinuous tones of the origraL In dociment repiDdU^^
enwision inaterials are used which norinally nrainly contain sih«r chloric
developmeflt but also to high contrast
In US. patent Ma 3.985.561. to be read in conjunction herewith^ a light-sensaive sih«r haMe material is desoa>ed
wt)eren the sth«r haMe is predonjnantly cMoride arid this material is capable d
or in an taiage-reoeiving material by Vis dWii^on transfer process.
Acoodifig to said palert a continuous tone Ihnge is produced by the d»u^
image^eceivbig layer through eie use of a ligh^8enE^lira la^
iodidb and/br saver bromide dtepersed m 9 hydhiphSc colloid binder ag. geiatf^
in an annum of at least 90 mtrie % based on the total mole of eiver haSde and wherem the weigM ralm 0^
colMd to silver hafide; expressed as sihier nilrale. is bdween 3:1 and about 10:1 by weight
. Wilh these Eghl^ensilive materials successful reproducSond continuous tbnein^
as a resiA of the presence of the mcficated amounts of Sliver iodide andtor s3ver bnxnide an^
of hydrophiKc colloid to silver haSda
. According to U.& patent Na 4.242,436 mcemse to be read 'n coi^unctton herewith, the reproduction of conlhuous
lorA images can be impiDved by developing the photograpNc material wilha njxlure of deve^^
an o<JhydroKybenzena. ag. catechol, a SiayrazoOdinona ag. a l-ar^:3i)yfaa)Wnone and cptioiially a pdihydraxy-
benzena ag. hydroqUnone, the molar amoum of ttw o^fihydrdxybenzene n said mixbm
amourt d the 3-pyrazondinona and the p<fihyd»oi(ybenzene if ^
respecttolhaoKfliydroKybenzena
Si0aUedevek:(xnentnudeifcrusehth8 above mentioned pMi^
a» noUe metal nuclei e« saver, paladlim goUt pialiwm. sultMd^
1^ Aa NIandCa PrefOaUyuseddevelopnKnlnucleiarecoaoidatPdSi^
The amount d nuclei used In the inage receiving layer is preferabfy btiween 0.02 nxi/^
The image receiving layer convrises.ibr best imaging resute the physical develop^
prdedive tqidMjptiite coOoid. ag. gelatin and/br coBoidai
The transfer behaviour d the cbRvlexed silver bigely depends on me tMdness d the
the hind d binding agert or mixlurB d faifKfing agents used in the nudei contaim^
innagewilh high spectral densi^ the reducliondthe silver salts diilusingirito^^
rapidly beiore lateral diffusion becomes, subsiartfal. An image-receiving material satisfyng said purpose is described
in US-P 4,859.566.
An image-receiving mderialdthis type very Guildito for use to oonnecliDn with t^^
tains a water-inpermeabto si|)port coated with (1) an iniage-receivi^
and Merfw^ica pigments dspersed in a waterpermeiMe biiider and ^
opmMnucleiandconlaifii«al«dMiifc«iltoidLin
(9 the total soTids coverage d said two l^ers (1) and ^) B ag. at most 2 gAn?,
(9) in layer (1) ttM coverage d the nudei is in the ranged ai mgAif to 10 mg/Irn?. and the coverage d bM
the range d 0.4 to 1.5 gl)^. and
(Ri) in said top 1^ (2) the coverage d IvdropNIic coBoid is in the range d 0.1 to
The coaling d layers proceeds prdeiably wilh sGde hopper coaler or av^
theari
Aceordtog to a particular entodiment the nudei conlainifig layer (1) is present on a nuclei-free inderlytag
hydrophfflc colloid undercoat layer or undercoat layer system having a coverage in the range d 0.1 to 1 g*i^ of
hydrophiKc colfoid, the total soSds coverage d layers (1) and (2) together wih
connectfon with this embodinMnt the naaeous pigments may he also be induled n the u^
included therein instead d being nresent ii the nudei containing layer.
The undercoat opiiondly ncorporates sU)6iances that inpiove the inage c|ua%^
EP0657297B1
innprcvu)g Ihe inage-tone a the wMeness of Ihe inriage bachgra^
rescert substance; silver confile(ingagenKs)aixl^
image shaipnes&
■- Accoiding to a special enqbcxfimem the image^ecewi^
thing layer in association with an acidc layer senring tor the neutiaKzation o( altali d the image-receivmg layer. By the
tinning layer the time before neutrafization ocoNS is established, at lea^
processing corrposiliiDn to penetrate through the timing layer. Materials stdable tor neutralizing layers and timng layers
are dsdoeed in Research Oisdosure July 1974. item 12331 and JUy 1975. Hem 13S25.
In the imagenreceMfig layer (l)andftiririsaid top layer (gandAvin an alk^^
preferiUy as Ivdrophlic colldil in layer (1) gelaSi is present pref^
used ooiiimclion wilh an olher Ivdrepme con(^ e.9. pol^
tlyl celUose; dasdran. galbelomannans. alff'nie add derivatives; ag. a^
aciyiainide& Sakt other liydtophilic coltoid may be i£ed al»
undercoat in an amount lower than the gela&i conlenL
"Rie image-receiving layer andfor a hydrophite ooBoid layer in water-permeable relationslq> therewith may com-
prise a silver hafide develcping agent and/or s8ver haEde solvent ag. sodium Mosu^phate in an amount of approd-
maiely 0.1 g to approKimately 4 g per m^.
. ITiairnage-receivinglaveroralvdropNriecotoidl^hwaier-penTOablerelafons^
coloidaisSca.
17ie tmage^ecemng 1^ may conlaiii as piqfsical developmert accelerah^
oping nidei. thio«lher compounds such as ttosedescrbed e» ifi DE-A-1,124,354: l^&P 4.013.471; U&P 4.072.S26
and in EP 2652a
According to a Referred embodiment the processing Equid and/tar the DTR hiageHreceiving material contains at
least one image toi^ agenL In said case the image toning age^^s) may gradually transit by
imagerreceiving material into the processing iqud and teep therein theocntfenl^^
pracfice such can be realized by using the silver image toning agents in a ccwerage h ttie range from 1 mgAn? to 20
mgftr? h a hydrophiSc wateipefmeable coSoid layer.
A survey d SuitaUe toning agents is given in the above mentioned book of Aixlr6 n>ll and Edilh
preference being given to l-phenyl-IH-tetrazole-5-ttaol, also caBed 1-pheivKSmercapto-tebazote; tautomeric stnjc-
tures and derivatives thereof such as 1-(2.3<Smethyt)heiiyl)^mercaplotelrBzole; 1-<3.4-dmell9lcyclohexyl)-&mer-
capto-letrazole. 1-(4^nelhy^Jhenyl>5•mercapto•te^razole, 1-{3<Moro^melhy^ei9i)«merGaplo-telia2o(ei l-(3,4-
dichloropheivQ-5-imercsfAo-tetrazol& Further perfculaiiyuseMloniig agents ti^^
the class of phenyl sttetauted mefcapto-triazotes. Sb1l ftirther toning
feried ennbodment d the present invention are the toning agents descrbed topubSshed European patem appB^
218752, 208346, 218753 and U&P 4,683,189.
In the secuity documents according to the presert invatfon the transparert or tianslucem support ^
resin.iam support or such sifport containing snral anmils d pigments or vdds opad^
port Fte example, white 1K3^ pailides as described e.g. h piUshed
areincorporatedtherein.
Organic resins suited for manutacluring transparent fihn supports are e.g. pdycaibonales, pdyesters. prderaUy
polyelliylene terqihthalatei polystyrene and txxno- and copolyir»rs d vinyl chlorida Further are mentioned cellulose
esters eg. cellukise triacetate.
The M)ove menSoned DTR imagefeceiving materials may be used in conp«iGtio^
inaleiial conlaMig a slver halide emdsion layer. For continuous tone reproduction
abtr a mbdure d eihrer cMoride; and diver iodUe and/o^
the diver haUe bearig sBver chtoride; and the ratio by vraighl d (QthiphTic co^
nitrate is behveen 3^1 and ion.
The Under lor the saver hafide emulsion layer and other optional layers contaiied on the in^
erafaly gelatin. Bd Instead d or together with gelatirv use can be made d one or more other natural and^^
hydnophiEccolloids. ag. alximin; casein, zoa pdyvi^
as eatbCKymelhyi celdose; modKed gelalln; ag. phlhaloyi gelalin el^
layerdlydrophifccdiddbindff to saver hafide SKpi^
ranged1:1 to lon.but preferably iwconlteiouslonereprodUdionisbelw^
ThesilverhaMeemuldonsmaybeooarseorfiwgrainandcanbepreperedbyanyd .
e.g. dngle jet emulsions. douUe jet emulsions such as Ujppmann emddons, amrnxncal emulsicins, ttuocyanate- or
thioelher-ripened emulsions such as those desabed in US-P 2.222.264. 3.320,069, and 3.271.157. Surface bnaga
emulsions may be used or intenial image emulsions may be used such as those described in US-P 2,592.250.
3,206^313, and 3.447.^27. H desiredL mixtures d surface and Internal image emulsions may be used as desabea h
US-P2,996,38&
EP0G57297B1
1he ^hwr h^Kle partkles ol ihe phctographk: einisMns
hedral tonn or they may have a transitkn form Reguiar-sram
NOl 5, SeplJDcL 1964, pfx 242-251. The silver haUe grans may also have an almost spherical form or they may have
a tabular form (s&called Trains), or may have composae crysbl forms corifxising a nnixture of regular and irregular
oyslalEne forms. The saver haDde grains may have a muHilayered sliucture having a core and shell o« dfferenl haUe
omposilm Besides having a (Merently cornposed aire and shd^
haide compositions and metaJ dopants inbetweea
The average size eipressed as the average diameter of the siiver haEde grains mayrangefrom0.2to12um, prel-
enUf between 0.2|im and 0.8|inil and most preferably between Q.Svm and 0.6tua The size disir3xjtion can be homo-
dispeise or heleiafispereL A hoinodteperse size (Sslribution is oUained when 95 % d the
noldeviateinore1han30%«(om1heaveragegrainsize.
The erniisioits can be chenvcally sensifeed ag. by adding sul|phur-c^^
ening stage ag. allyl isothiocyanatet allyl thiourea, and socSum tNosu^phata Also redudnig agents &g. the tin com-
pounds described in BE-A 493.464 and 568.687, and polyamines such as diethylene triamine or derivatives of
am'nomeihane-stiphonic add can be used as chendcal sensilizer& Other suiW
als and noUe metal conpouKis such as gold, plalinumi; paOadua
dieirfcal sensifekion has beeri descrbed in the article ot aN06L0WSW^
46.65-72(1951).
The emulaons can also be sensitized writh polyaV(ylene ccdde derwatves^ e.g. wilh polyelhylene odde having a
moleato weight of 1000 to 20.(X)0. or with condensation products of alkylene cod^
cycSe defvdiation products of hexitols. aB(y|-substituted phenols; aTfihafic carbcoqiic acids, aliphatic amines^ OiphaSc
(fianAies and amides. The condensation products have a moleoilar wtigM of at least 700, pre^
1000. It is also possible to conMie these sensilizeis with each other asdesciibed h
The saver hafideemi^ may be seieilizedpanchromaticallytoensurerepnxkicito
of the spectrum or H nnay be orthoetvomatically sensitized.
The spectral photosensitivity ot the silver halide can be adjusted by proper spectral
usual mono- or poiymethne dyes such as acidte or basic cyanines. hemicyanmes. ODCon^
others, also trt- or polynudear methine dyes ag- ihodacyanines or neoQannes. Such spectral senste
descra>ed by &g. F.M. HAMER in IThft Cyara'na Dyes and Related ConqpoundS* (196^ Mersdence IWehiers, John
WleyftSons^NewYark.
The saver haide enruisions may conIA the usual stabifzers ag. homqpolar or saR^
vrim arometto or heterocydic rings suchas mercaplolriazoles. single meicu^
and other mercury compounds. Other 8uiteUe«idiilizers are azaiiilenes. pr
^ly those substituted with hydroKywanmo groups: QxifioundsolltfelM
Photogr. Ph^ophys. Photochem. 47. 2-27 (195^. Olher suitable sbbifizers are Ijl heterocycfic mercapio compounds
e.g. phenylmercaptotetrazola quaternary benzolhtuolB derivatiyes; and benzotriazda
. A survey d photographic diver haEde emulsfons and their preparafion Is given hReseatdiDisc^
1989. Hem 308119.
Processing of the ktnge-wise exposed photographic dhierhalideenijlsi^ .
image receiving material accorc&ig to the invention and is aocompTBhed usmg an attarme processing fiqiAl having a
pH preierably behween 9 and 13. The pH of the anaSne proces^ng BqukI may be e£l^>S5he^
substancea Suitable alkaline substances are inrganie BRoH ag. MBum hydroxide, potasskim caifaonate or
aOenotanines w rnixtures thereoL Prder^ used altanolamipes are lertoy alta^^
EP-^3979eSl EP-Ar3979e6. EP-MmZT. EPnAr398435and US4>4,632,88& Aconttratioriof aOonol^^
bqbolhBpl^abovawbetowSoraoantinafionofaltanolOT^
havhgapK|0(9wlessinayBlsobeu6edaBdteclo6edintheJapanesepaleiiiapplfoa6onsbMopm
beis 73949/61. 7386361. 169841/61. 212e70ffi0. 7395061. 7396261. 10264461. 22664763. 22945363. U&P-
4.362.8liU&P 4.568.634 elCL. The tnneenlialkmdtbeseananobin^
Suitable developirig agents for the exposed saver haUe m agi Ivdn^^
typedevdopi^gaga1lsaswegBsiHnenomel^yla^drK)phenclandde^^
of a hydroquinone-type and l-pheivi^-tyiazol^^
in one of the layers con^prised on the sivport dlhapholoffaphie maierU
Bdone-type devetoping agents Is (Csdosed to the published EP-A 44934a
Acoonfing to a prefened emboc&ment for conliiiuous tone repioducto a iin^
an (Kfhydraxybenzene. e.g. catechol, a 3i3yrazolidinone ag. a l-aryl-SflfiazoEdinone and optionally a p<S>iydroKy-
benzena e.g. tvdroqukrane the molar amount of the o^ShydrcK^^
amoum of the SiiyrsKdidinona and the pKlilydraxybenzene if any befog presert in a molv
respect to the o^Shydhnybenzene can be ieed Olher ^ of developing ag^
the present imenlibn are reducfones ag. asoortifo add derivalivea
EP0657297B1
The beralopmg agert or a irixhire d dmioping agents can ^
photographic material or thainrage receiving nnter^
is contained h Ibe photographic material alitor
aqueoiis dlanne sohilion thai initiaies and activates the devdopnra^
In the DTR proceCT the phqtogiaptMC elernerit Is da/eloM in ll» presence of a silver halide
ised alver halida solvents are water sdidile Ihioadphate conp^^
ammonium and aBoS me^ thiocyanates. Other useful sih/er haTde'sokents (or *co^^
the book The Theory ol the PhotogiapHc Process- edited by T.H. Jiames, 4th
si^phites and indL Firtier Meresling slver haSde coriv^^
alanolarihes, as described to US-P <297.430 and U&P 4^oga a-meicaptoberBcic acid derivatives are
described as saver halida soberils to IJS^ 4^,429. prderaUy GoirUned with aB^^
and alKanofamine& t>ialkylmethylenedisultones can also be used as silver haGde so^
The saver halide sohrent is prderaUy present in the processing sclufiM but may ^
layers comprised on the support of the imaging element andAor receiving maleriaL When the silver halide solvent is
incorporated to the photograplw nnterial it nray be incorpaated as a silver haUe solvert pretovGor as
Jqanese pubfished unexaimied patent eppEcalions na 15247/^ and 271345«3. U&P 4.693.955 and U&P
3.685.991.
The processing solution f[)r use to the production of btadc-andwhite photographs in secui^
to ttw present invention may coinprise other additives such as e.g. thicteners. preservatives, deterged
detergents such as SUF»=Yr»L 104, SURFYIO. 465. SURPrNOL440.eta aO avai^
Conpany,New\bric
The DTTVprocess is nonnaBy carried out at a temperahjre in the range of 10<<! to SS'Cl
Further details about theblaclt-aniMtite DTR process and also about thedyediffu^tiansferprocess and image
receiving materials used ttiereto aredescribed to Research Dtsdosura Nover><)er 1976, item
The presei^ tovenlion wilnow be ilkBtrstfed by the foBomng exain^
percentages and parts are by wieigM uiless othenwise spedfied. ■
EXAMPLE 1
- Prcparalioh of photographic element for use to the DTR process
A geiatiK) sihrer haKde emulsion was prepared by slowly ruviiig vtri^
ver nitrate per liter Into a geiab'ne solufion contatoffig per iTwIe of saver nhrate 41 g of geiatto. 12 mole d so(^
ride, 0.08 mole of potassium bromide and 0.01 mole ol potassium iodide.
The temperature during predpilation and the siteequem rpeiwig process lasting three ho^
Before cooling, sivedding and washing 214 g of gelalto were added per mde of silver halide. The washed noodles
were rrniten and another 476 g gelath were added per mole d silver halide during the chemical ri^^
entog 285 g d gelalto to the form d a 20 % aqueous solution were added to the emulsion per nwle of silver hal^
weO as hydtoqutoone to an amourt such that after ooattog 0.9 gdlvdroqutoonevvere present per ■
4.4-<Smetlyl-3-pyrazoGdtoone to an amount sud) that 0.21 g thered were present per n?. ThB,pautsion was coated at ,
one side d a subbed water-resistant paper support consistihg d a papa having a weight'd^'fe-gi^'coatedel lt^ ' •
sides with a polyethylene stratum at a ratio d 20 g/hn? per sidei
The emulsion was coated to such a way that an amoud d silver equi\;aled to 1.5 g d silver nflrd
ID?. The amount d gelatin corresponding therewith is a93 gAn? since the gelafin to silver rvtiale weight ratio was &97.
- PreparatiDn d hiags receivtog material for use to the DTK process and contaihing fgM toterfeien^
One side d a doiMe^ siAbed bansparerd polyetlvlene terephlhalate support ta
was coated after corona treatmert at a dry ctwerage d 2.5 g/hi? d gelalto and 1.3 gtoi? d toierf^^
the folowihg coating composition:
12
EP 0657 297 m
caitoxyinethyl cellulose
12 g
sasg
3%aqueoiJSd!^)eisimdcc>lloidalAg^.N^
14 ml
4 % aqueous sohiSon of fcmnldelvde
12 ml
aqueous dispefsion cl blue PALOSECURE ^ EC1408 pra
denam) oorta'nng 30 % ol said Uue pig-
80g
inentand8%olgelaiin
12^ % solUion ofsaponine in ethanoVwater (2(V80)
20 n4
>5 llnolhersicte of saklsivport was otaledwHh the above HKnlk^
wilh1h&diilerencehowever,tMthebluelnlerlerence
re|ilacedby>ellowirdeiferencepigmcnllRIODINES231(badena^^
• PruiSng of the image rectivbig irateiial wRh'patteni of gfaphical and numerical inionnalion using a blue nooiikfscent
20 ink
The printing cf said intomiaSon was carried out In the bachgnuntf area hanrihg 9 yellow color (on observation 'n
renecSon mode) due tothe presence of saidlnterference pigmerrt IRIODINE^I
25 DTFVimageformalion
' Die above delhed photographic eluiiKnl was image-wise exposed lr> a reflex camera to cblah tlierein a photic
graph tpotlreiQ of the pasqwrt owner.
The photo*exposed elerneiit was pre*irxw5teiied with a processliig Bquid as defined liereffiafter.
30 1hecoritadtimedthepholo«ipo6edelenwntwilhsaidMdwasGsecorxlsbeforebeingpress^
the image-receiving material at the blueisigmert skfe as deTfted atx>^ The tran^
YPROOF (registered trade name of AGFA^AEfirN.VJtype CP 380. Ihetransttf In
the inege^eeeiving tayer a poGitve blaci»nd«hile (sih^
ss - Composition of tlw processihg Squd:
iQldroxyeUiyl celulose
1.0g
2.0 g
45.0 g
14.0 g
KBr
0.5 g
1-Phenyt5-fflercaplo-teliazole'
0.1 g
1H3.4^>ichlorqphervO-1H-lelrazol»»lhiol
0.02 g
so
45,0 ml
N-methyl-diethanolaiiine
30.0mf
WUerupto
11
VVhen itoved in dayCghl uriler an angle of 90* h relieclkm mode the color of to
trail rnspectkm m the (mnt side) was blue due the presence of uniformly d^
1408-BLUE (tradename), tathelransmission mode the cotorhlhat background area becan^
EP06572g7m
at Sie front tido and UuB at Vie rev side:
On copying tlie obtained cioctmiert
portraH were reproduced grey (yelow plus bhie) lowfig llie 1^
with poor contrast thereoiii
EXAMPLE 2
- Pteparation of inrage^eceiving elemem for use in dye d»lusi^
A transparem polyvfriyl cHoride sheet havbig a llftkness d 0.100 mm wa^
side wilii the follovring oornposilions for fonriig a suU]^
1. Subbing tayiffooalihg oompooBon
gelatin
4g
aqueous dspersion of blue PAUOSECURE type EC 1408 (tradena
me)Gonl^nhg3D%cifsaidbhjepig-
2O0g
roentand8%olgelaiin
ingredent A 40 % solution dispeised in aqueous medun
250 ml
5 % solution of sOoxane compound 'm ethanol.
125 ml
12.5 % sofaiion of saporene in elhanol/Water 2(MB0
20 ml
Ingredtert A is a polyesleriwiyvethane hairihg the same chenticai composilion as described
cohmn 2: Rnes 64^ and column 3. foes 1-8.
Ihe coalifig composiiion was appBed coatedat a dry coverage of 0/( gftn? of gelatin and 1 ^
menL
2. Coating cuiiJosition of ttie irxxJaidiig layer
gdaSn
mordant M{20%solulton)
20g
250 ml
sapon-nea2%)andw6llifig agent W (5%) in water
32 ml
aqueous 4 % sohitton of fonnaUehyde
10ml
Mordant M on the basis of an epoDddzed catibnfc polymer has the same confMsito as described
4^,593. cdunn 7. fines 14-42.
The coaShg composition was appGed at a dry coverage of 0^ gAn? of gelatfcL
The oBier side of SMspon was coated wflh the above mentioned inage^eceiving layer c^
Witt) the dliference howevier, that the blue interference pigmem PAtJOSECUl^ type EC 1408 (to^^
replacedbyyenowhter{erencepigmentmiODINE9231 (trader
TTwaboffldernedlmage^eceivihg material was prDCBSseJ In
for material as descrfoed in the Exariople ofUamrfoL 4.496^ wMAmal^
aportraft. The exposed material was kept fori minutehoontact with the dxmdeTm^
b(Aig led through adiffusion transfer apparatus OOPYPFOOF CP 38 ftradenanwoTAgl^ N.V. Betgum) ha^
. ing in its the following basic processing Iquid ':
EF0657297B1
sodium orlhophosphatB
25g
Qfdohesiane dinethanol
25 g
Z^meihytpropyJpropanedoJ
25g
N-elhyB)enzenei)yrid^
dfetaiedwaleruplo ■
1000 ml
After leaving the processing tray the image-reGeiving sheet was led throu^ a second tray ccntaning an aqueous
solution o( the already menlkjned wetlingagert W coireqxiKfing wit^
CKrO)34{andpolassiumkxfida(reLEP0250657). .
After drying the piDcessed sheet material it was lantinaled as described in U&P4^593to
card.
EXAMPLES
The Maference ptgnwms mentioned h Eiample 2 were appS
respectively instead d in the sitting layeis of an inage-reoehmg materiai
- F^eparation of the image-recewihg element
A transparem polyvviyl chloride sheet havifig a thidoiess of 0.100 mm was alter ooim
side witti the foHowing oompositkjns for iormihg
1. Coetiing oonfxisltion of the subbing layer
gdalh
ZOg
ingredient A 40 % solution dispersed h aqueous medium
ZSOrrt
5 % sokjftm of silQxane confound in ethanol
■ 125mi
12^%sohitionotsapordrieinethanolAwater2affiO
20rnl
The<x>atingconposilionwasappfiedc!oatedatad>ycdveiageor04^
2. 0)aling conposilion of the tiort moidanling layer
gebtih
12g
aqueois dispersion d blue PAIJOSECUFS type EC 1408 (tadename
)oonlainft)g30%dsaidbluepi9-
100 g
mentand8%dgelatni
mordant M (20 %solu6on)
250 nri
saporine (12 %) and wetting agent W (5 %) h water
32 ml.
aqueous 4 % sohtion d iormaldehyd»
10 ml
EP0657297B1
3. 0)aling oonpteilion of the rear monian^
gelatin
12 g
aqueous dispeision of yeDowlRIODINE 9231 (tradename) oonia
lining 30%of yeIow|)igmentand8% o(
lOOg
gebtin
mordant M (20% solution)
250 m)
saponine (12%) and wetting agent W (5%) in water
32 ml
aqueous 4 % solution of tormaidehyde
10 ml
The coab'ng conpoGilion was appfied at a dry comage ol a9 g/h^ d gela^
EXAMPLE4
Exan«]le3was repealed wilh the diiterence that ttieSgMMerteencepig*^
top coal covering the mordanting layer. The-dHed lop coat contained (X5 gAii'-ol gelafin and 13 gftr? of inleiferencs
pigment at each side of the transparent support
Claims
1. A secui^documert which contains at least one layer and a transparent or tcanslucertstiiport and at least
inage or pattern seiv&rig for IdeiitBicatioiipivpiises^ characterized h that sdddociiiiuu4conlab)s at lesst
inteifcreriOBptgiiieridistet u teduniiorwJy or pallernwto in or ori at least one layer ol said dociiwert
2. DocumeritaccoRfifig to ctalnl.wlierean said docuinerrt contains rrixtires of dHteeid fight in
3> Documeril according to claim lor 2, wtiereinnn said documeritdftefefili^lnterferericepi^
lormly each in a diHerenI layer at opposite sides of said support
4. Doetmiert according to clain»1 or ^whereh in said documemdiffiefertintaibrence pigments
iorniy ead) nn a different layer at opposite sides of said support and at least one of said laym
andtor on top a pattern containing dommcnlight-renecting pgrnents andftr dyes having noS^ inierlerence prop-
erties.
5. Document according to ddn 4, wherein said'patlent has 8U>6tantially the same color as ttw color coon in trans* .
mission mode or rellectioii inode ol ttie Eghl Merfereiice pigrneiils combined wiUi said patleriL
& Documer4 Bum J^iH to clain 1 or 2^ wherehpalleriHiiise printed nterfererwepignierils are preseiit underneath-
arxifer.on lop of a pattern confining common ligMiellectifig p^menls andftr dyes having no light interierence
properties.
7. Docunient accoiding to d^l or 2; wherein a pattern of prMed interferes
andtorontopofalaytirorsifiporthavingaoolorsulKlanlialVthesameasthaci^
■riterfererice pigments wlien.seen h reflection or tfaiismission mode:
8. Doeuniemano(d»igto ciahi1or2.whecenip(i^
underneelh piirned tniorination containing nonnal f^-absofbing and
one side of a transparent s^)porfTS and at the other side dead support said 1)^^
pattern l>eif)g overprinted d least partly by a patlOT contaifiing light
9. Documenl.acooid!hgl»cla'm1or2;v«hereihnfDrnntionconlaiii^
EP0657297B1
transparent support TS is pattemwise printed over (1) a 'commor)' light rcflecbig pigment pattern R1 of wtBch Jie
cotor Is corrvteflientary to the cotor o( said pigrneiils A when se^^
prising 'cornmon* light renecSng pigments m mixed with (xiored nuores^
RF. and at the other side d said sif)port TS inldference ixgmenb B are prM^
minium or bronze platelets) pattern ML (2) a pattern (xxiiprisingEgM r
mentary to the color of said pigments B when seen with rellecled Ifghl, 0) a patient oomp^
M mbced wHh 'common- EgM reflecting pignwnls R2 having a color coHf^^
when seen with reflected EgM.
iOL Oocumertacmidlhgtoan/dtheprecedhgdahB^wherehsaUdKa^^
snage or pattern.
11. Dociunentacconfingtodaim10.wheransaidphologiaphicailycblabiedbn^
of developed photosensitivQ silver h^e directly in a fght-sensilive mate^
recewing material
12. Documertaccortgng claim 10. wherein said pholographkallyobtairiedim^
a noninpact printing techr%ie in which analog or digital input sig^
signals originating from a visUe originaL
13. Documem accorcfing to 10, wheran said photogiqMally produced in^
saK dHhsion transfer process in an imag»eceMng material contiMhg aniroagereoeiving layer c o mp i i sji i g devel-
opmentnudeL
14. Documentaccoidhgtoclahi10,whereinsaidphologiaphicallypi^^ •
fusion transfer process in an image^ecemng material containing a mordart for a
wise eqposed and deraioped silver halSde emulsion material
1& Documert according accordhg to aiv of the precedngdaims.wherdh said interims
lets coated vrith a metal oxide.
16. DooBnerrt accqnJirig to daim 1% wherein said melat onde is sete^
FBjPsandCrA.
17. D(^mgrtaccoiding 10 claim 15or 16. wherein said
18. Document accoiding 10 aiv cl^ 15 to 17. wherein saki platelels have a brgesi surf^
and200|imi
19. Documei«accoidihgloBriyoici8ims15io18.whereintt)etti-cloies8dsdidiMa^^
and0.6)im.
20. DocumertacawifiB to any of the precediifldahB. wherein said Bg^
documertinacoveiageofOL3glhi?to10gA(n?. ■
21. Doaimert according to aiy of the preced»Klcbwis>whCTeinsai^
Witt) a thin metal oxide layer or has t)een coated wittt s^ metal codde layer on top o(
ligM interference pigmenlsandfer coating or pattern of gght reflecting Pigments
erties taking care ttBt ttie thus coated metal oxida 1^ has sU)stanlialV the same or color confile^
color of said pattemwiss appTied pigments.
22. Documertaocoidlngloany^ofmeprece(Sngclaims.whereinontt)ellmi»^
oftheraU>owt»IOR«wsameasthe.nonmloroonipleni^^
23. Documert according to daim 22. whereih one or more of ttieraintww colors is ^
17
EP0657297B1
24. Docwiienlaccoicgngtodaim22.whHBnl^
intefcrencepigmertsandtowilhsaklli^
25. Dociimefilaa»idbigtodahi22.whtfeinsaklraH^
with a lluorescert or phosphoresceni p^ert.
2$. Documenl accordbig to daim 22. vyheran (a) Whiorescent pigmenl(s) is ^o) ntod wBh one o< said light reflect-
ngjxgmenlsandWbrnixedwithsaidBgttiriterfer^
orescertp«nent(8)show(s)li^frfimd»feferti^
range of the cokifs d saidligM rdlecfinffand Merf^^
condffions and the other corresponds with the nomol or eon»^^
27. Documenl accoiding to ariyd the precedmg dams, whcran a gwlloc^
perfect see-through prim re^ster on the tort and rear sWe o» said siwort and
menfs showiig rdnbow ««W prnited al one sWe ha« con^len^^
but have at one skieacotor the same 88 the normal cotorolsakiligMMerferencep^
said gtOoehe pattern at diherskle cover at least par^aphotogaph or printed pat^
28. Docunert according to any of the prec»fing daims, wherein sa^
partly cowrihg each otherand said patterns each contain (a) dilfereirt light tnterierence pigmenl(s) iw co n slrucliort
and coinposffion of which is such M ^ shovr a dmererd a>lor shift when vie»^
angles and wherein the printed pattern most remote from the oteerver has higher covering power ttian the patten^
prWed thereon wtttdi is more transparent^ hereby obtaining a doa«iert that shows h tte
a continuously changing color shin by changing giadualV me obseivalk« angte
29. Doairnertacco(dii«loanyoftheprecedngciaims.whereinsaidlightM^
stfport
3a DocumentaccoRfingtoaryoimeprecedbigdaims^whereinsaiddocumeMisbithe^
PateniansprOche
1. EhiSicheihBlsd()laiment,dasweri3slenseineSchicMundeinendurchslchl^
und wenigstens ^ zu Mentifiat'onszwedcen (ienendes BiU Oder Muster erthan, dadU^
das Dolaimert wenigstens ein gleidmaBig Oder mustennaSig m Oder aiil wcf^ers einer
ments verteiltes Uchtinlerierenzpigment enthaiL
2. DohjmertnachAnspnich1.dadurdigetoinzdchnet.daB<tesE)okum^
Werferenzplgmenten enthan
3. OoKumert nach Anspruch 1 oder 2, dadurch gekennzeidwiet, daS in tfiesem Dokumenl ve»scNedene Lichtinterf e-
renzpigmente je gleichmaBig 'm aner untersdiecBichen, an den gegenOberlegenden Seiten des TrSgers belindG-
chen ScNdit enttialten snxL
4. DolajmemnadiAnsprudi1oder2.daduid>Bel<Ennzddmel.daBindfesOT
renzpigmenle jagMEhniaBig in dnerunlersdiiedidwiK aridm
dien ScHcM orih^ sihd und weriiBSlens dhe dteser SdiicMen aul deren IM
. Muster RftObidiQnidiireneMierendenPiV^
has.
5. .I)olaiineMhachAnspnich4.daduRAgekennzeid)netdaBda$Mua^
1^ (fe bei der Durdisidit' Oder Aufsidilbetraditung ider
. Muslerbedtaditetmrd.
6. DolaiinertnadiAnsprud)1oder2,dadirchgel<eniizeichf)eldaDunleru^
iditreileliSerenden Pigmenten undtoder RaibsloHen ohne Udilmterferenzeigerjsdiaften nustemiaBig gedlrudde
EP0657297B1
7. DbtamenlnachAn^pniGhloderadaikj^
ger eih Misier von gedhKiden Neitoenzpj^^
sUit-oderAuisichlbelrachlivigwesei^
Muslefs auhweisL
& DolainKrtnach>Uispruch1oder2.dacli^
renzpigmente A, inter denen sich gedrudtte Infbrmation entttahends. nonrale, DctTbbsorbiefGnde und lichlreilek-
tierenda Pignwnte R beTindea auf aner SeHe ahes diodi^^
Seile cto Tragos dw-nomialta Pigmenle R h dnem wenigsiens tei^^
enlhallfiiides MtBier ObBidhJcMen Muster gedrucM weidenL .
9. DolairnentnachAnq)njcli1 (Xier2,d9durchgek^^
menta A au( einer Seita dnes dudiaehiigen Trageis TS musteimaBig Ober (1) etnem 'QtiGctie* liditreneMief ende
Pigmente R1 enthailenden Muster, deren Rutw tKi AubU^^
memar ist. und (2) enem P^mentmister mS 'flbBchenr BcMreileMierendeit, mit geiarbten fluoreszierenden Oder
phosphoreszierenden Pigmerten oder FartistoQen RF.venmsdilen Pigmenten R1 gedrudd weiden und autder
anderenSeHedesTragersTS hterferenzp^mnte BO^O) eiiiemMelal^erte(Ahjniimim-oderBronzeplat-
ten) enlhalienden hfuster M, (2) emmMusler nA EcMreflaMiefenden Pigmenlen R2. da t>ei Autsichltielradiling
eine mil der FMm der Pigmeite B komiiieinefilBia labe au^
M, dte iril Ifwrinalenr IkMreneMiera^
merila B toinplenieniare RarbQ mAvefeea vemisc^
1 a DoianK9« nach bgeiidemefn der vnst^^
graTBCh eilianenes BM cider Muster enMIL
11. DokunwrtnactiAnspnjeli10.{iadWchgel«inzeictinel.daBdasi^^
AnweiicksigwneiAMciellemiDtoein^^
(xler h eifiam EchlunenfilindMieri Badem^^
12. OoiamefdnachAnspnJch10.dadUn:hgiBl(emz^
anschlag«reie DrucMedmSt, bei der analoge Oder (^Bale. den Dnidomgang steuemde Bhgangss^a von
dunh eine sicMbsre VwiagfteinWerten Foltieigi^
13. Dohuinert nachAnspructilO.dadurchgeteniizekto^
ttem SilberealzdiHustonsObertragungsmfahfen in eiiem BiMe i n pty i gM i idl eiial mB einer BilwicWungslwhie ent-
tiaNenden Bildfempiangssctiiciit erzeugt wML
14. 1)okuinenl nach Anspruch ia liadURdi gekennzeichnet daB da^
chend e'nem FaibsloiidiflusionsCbertragungsveifalren in einem Bildefflpiangsnialeriai; das ein BeznflterUr
einen von eineinbadmaSig belichtetenund entvricfcellen Sibertalogenkienwtsionsniatenal OxHragenen F^itetoff
enthait, ertialten wW.
1& Dolumertnactiirgendeinemdervor5lehendenAnsprOche.daduici)gei^
nil einem Metallaxid ubeizogene MDepiatten sind.
IS. l)otajinertnachAnspiuch15.ifadureligeteiniei(im^
17. DotamentnadiAnspnahlSoderlG^dadurdigelcennzeMinetA^
einezwtile. aus KDHenstolibedehendeScNiMhatea
ia.DolamenlnaeiiirgeKleinemderAnsprflelw15l)is17,dad^ .
(tochmesserder Phtten ZMisdm 5 und 200 pm EegL
la DoKuTiertnachirgendanemderAnsptflche15l>i5l8,dadurchgei(e^
l»gmente zwischen 0,1 und 0,6 iim iegt
20. DokumertnadiirgendeinemdervDistehendenAnspnidie^dadu^
menle ar> einem Vertiaitife zwisdien 0,3 g/Inn? und 10 B<hi^
EP0657297B1
21..Dolajnrart nach igendeinem der vnctehendeny^^
direM durch Aufetauben nut emer dOnnen MeiaDood^
Uchlinteiferenzpigmenten undfoder oben aul einer Sdicht Oder enem Muster mil icMlreliditierenden Pigmenten
ohne Licht'rrtedaeiizeigenschaAen nnitder MetalaxidsdM
5 aufgetrageneMetalhnxisctttcMwesentrKihdieselbeFaite
Oder eine damit tomptementare Fart>e aufwesL
22. DolamiemnachirgendanemdervorstehendenArisprflche.dadunAgd
undfeder der ROdceite dies Tiageis unter und/bder auf gleichmaBig oder musterinaBig aufgeiragenen Inteif erenz-
10 p^nentenengedriicMesGuiaochestrUmius^
dieses Effekls FichtfeneMierenda, den Regeribogeneffekt aufweisenda Pigmente enthatt, so daB eine oder mehr
Regenbogenfaiben dieseB)e Farbe 'et bzw. sind wie die normate oder komplcmentare F^ibe der LxMinteiferenz-
pigniente.
w 23. DoKurnemnachAnspiuch 22, dadurchgehennzeicta»t, daB eine Oder meh^
von MetaHlpigmenlen eritallen weMen.
24> Dohmient nach An8))niGh'22, dukUKlb gekenueidinel. da6 fluoreszIereiKie oder phosphoreszieiendB Pigmenla
nnit den UchtMerferenzpigmenlen iDXl/itxlerden idilrefleldieref
20 muster dadurch den RegenbogeneffeMverieihen.
25. Dotainient nach AnsptMch??,rtarti>chflekennzetchnel;d&B der RegeifaigenBWBM
sk{htigen, nil eineni fluoreszterendei) oder phosphoieszierenden PSgmenl gebdenei^ l^chs
IS 26uDokunKrtnachAnspnJCh2Z.dadundigel(ennzeMmetdaB(ein)bH^
icMreileMierenden P^menle und/bder nil den UcMirteiferenzp^nKnten vemiiscM Isl <sind). wobei das (die)
• Fluoreszenzpign)enKe)be}BeEchlungiiflUltravk)leim
«iniBt(aiilweisen). von denen sich einer bei Beba(Miing unter skMbarem LicM der lichlreneidierenden Ptgrneiite
und LtcMinterierenzptgrnente vom Wellenbereich der i^ibim der ScMrefleldrerenden Pigniente und UiiMinteffe-
30 remp ^ merte unterscheiJet und der andeTe der nonnaten oder heirpieineniaren Faibe der hterferenzpigniente
27. Doian)ertnacliifgendeinemdervorEtehendenAnsprOcfte,dadurchgekennzeklinet^
Regenbogeneaekt in peifeidem DurctisicMdruclTegister aul der Vordeiseite und ROckseiie des TrSgeis ged^udd
X wird,deantiner8eilegednxMealkiitrGflekt!erenden,denRegerbogen
der Faibe der gedhicMen Pigmente tomplementare Faibe^ aber auf eiwr Seite eine der nonnalen Faibe der Licht-
inteiferenq)igmentB enthp r eclienJe Faibe aulwrisen, und Tale des Guaiocheniusteis an beiden Seilen wenig-
slens teilweise ein UcMfaild Oder gedriiddes Muster beded^
40 28. Doiument' nach irgendeinem der vorsteheniden AnsprOche^ dadwch gekennzddinet, daB das Dotaiment
gednidde Msier. die wei^ens teihweise einander bedecfcen. und Jedes dieser Muster (dh) uiterscMedSChe(^
IjchfinterferenzpigmenKe} enthait. das (de) so strul4uriert und zusanmengesebi ist (sind), daB es (sie) bei
B^rachlung unter dem6el>en Beobacttungsmhlcei eine unteiscMedliehe FartweiscMeliung auhveist (auhveisen).
unddBB das am weileslen vomfieobacMer enlfernl liegende gednjG^
45 weistatedasdBiBulgedrueideidUnteiChl^Muster.wodUreheih
nmg .des Beobachtungsivintels im Oberlappenden Musteibeieidi ehe dch ununteibrochen andemde
Fafaversctriebung f estgesteitt wkdL eihalten wild.
29. Dolaimert nach IrgendeftKm der vDislehendenAnsprOcheidadu^
50 . menleimTragerenthallensirxL
sa Poiainentnaeh»genddhemdervoistehaxlenAnsprflche,daduichg
ebies Lamaiats voiliegL
IJn document de s&uril6 qui conlient au mwis une couche et un support transparent ou ti^^
une inrage ou inolil seivart ft des rms didehiakalion. carad^ en oe que ce'document ooM^
ment dinteilirenee lunineuse dislrl3u6-unifc)nmfirnenl ou sous fcn^
EP0G57297B1
ds ce docmnent
2. Doaniertselonlanvendicalk>n1.caiacl6is6enceq^^
rencehmiihaisei
X DocuiiiertseionlarevendS(»iion1ou2,caia
rence lumineose sort chacun pf6s€rts de manko uniJomw dans une coiiche cfifffifente des cfitfe oppose du
SMPporL
4. Docunentsetonbreraidftaikinlou
renca sort chacun prtsenis de manite unHbmw dans une
nwuis une.de ces couches aatKiessous dfeu aiKiesstB m molil conlenartdes pig^^
res r6IKctiissant la tumitee et exeirpts de prcpri^lte dMerterence lunineuse.
5. pocumertselonlarevendica6on4.caracttris6encequecemoli>aessenlieSe^^
teurvueentr a ns n iisstoouenr^newcndespigmenlsdlnlertfrence^^
6. I^ocuniert8elonlarerandlcalk)n1ou2;caiacMris6encequelespi^^
de nx>l3 sort presents atKlesscus elAiu au-tlessus dte nnfif contenart des pig^
rSKcKssart la hirigre el exenpts de propri^tte dSnteff^fence kmineuse.
7. [)oeumertseknlareven(fca6on1ou2.caiacteri^encequf\jn^
sert aiKlessoiB eVou aiKtessus dune couche ou dtei sifiport poss&lart es
la oouleir duda nwOfodnlenart Ite pigmenls dMierterence 1^^
& IX)Cunertselonlarewendicafion1ou2.caracteris6encequederinkiri^
dirterf 6rence lunineuse A au'dessous de laqu^ est inpikn^e de Hnionnation cortenart des p^nents onfinai-
res R absortart d rOteiiissart la lun«ire est prfeerte sw un.cM« tfui supp^
decest|ipoittesdasplgnienlsoidhairesRsortirip^nitedan^
par unnnlirGonlenart des pigments dMeiKrenoeluRiiheuse a ;
ft. DocuinertsekinlarevendcaliDnlouacaiaderisiencequedelfedD^^
rence kjmineuse A eur un cei6 d^m stvporttranGparert TS est Invthite sous
motiimdepigmert 'ordinaire' refl«chissartlalun4iredort la couleur est conf)l&^^
menis A lorsqu'on les observe i to kmUm tfUkiie, dte mofif de pqmert conprenart des p^enls 'ordroi-
res* B1 renteMssart la haniire et m£lang«s avec des coloranis ou pigments RF colorte Ouorescents ou
phosphorescenls>rt5urraiitrec«6dudtt support TS des pignentsdirtert6f
dUimoWMdepiginertinteliqiieiipaatettestf^^
R2r«fl«cl)issartlaiumKrearaeiTOcajlewcoinpMmertaireaiaeoulew
ft la Ium»r9 rMtehiek (3} dtoi in« conprenart des p^nnertB mteli^
nakes-ierfiflteMEsartlaluniiiSreaveeuneoouleurcorr^^
observed la knMrer«£(MaL
m Docunwrtselontoiequeiebnquedesreinndta^
uninoiiIoblenu(e)parvo{ephologn«)hique.
11. Docunwrt selon b rwendicalkin 10. eaiaclMsfi en M que ceita image ou c^
phiquB est predtilt(e) au moyencnn hatogteve (Targert phohsensUe de^^
sensible ft to hmite ou dans un maieriau rteepieur cftmage non«ens»e ft b lum^
12. Doeumert8elon brei«nd|calfen10.caiacl«ri$6enceque.^^
plikvieestpn(ftA(e)aumoyeniite)etechi«|ued1npnessx)^
taux ou analogues poiir cornnnnder cette jnpression provlennert de pholo^gnaux prov^^
13. Documertselonbrevendic9tion10.caract£ris« encequecellelniageoucen^
phique est form^e) par le prDc£d6 de transfert de set d-aigert pv dMhsioh dans un ^
cortenart une coudw recqpbim An«ge comprenart des germes de dfiveloppemert.
14^ DocumertselonbrwendtaHk)niacaiacl£ris6eoce que cette image oucemofifp
EP06i»7?97B1
pKqiieeslf(irin£(e)parinim)cid6delran5fertdec»k)^
tenant un moniant pour im colorant transfM ApartrifUi mafiriautf Emulsion k nakig^ed'aisent esipos^ et
d6velopp6 sous torme dlmage.
15. Document selon rune qudconque des revendxations pr&:£dentes; caradMsA en ca que les pigments d1nte(f6-
rence sort des paaietles mca enduites tfun ootyde mflaJfique.
16. DocumemGelDnlaretrendicaSon15.caraderis6encequeraicydemdalliqueestch^
elCrA.
17. Doeumenlselonlarei^kafion15ou16,caracl«ris6enceque1e5pdlle!teseK^
recouvertes dUne deudime couche de carbone.
18. Doannert selon l\jne quelconqu&dK revendications 15 d 17, caiad6ii56 en ce que les
de surtace maodmal entre 5 el 20O tua
ia Document seionnjnequelconque des revendcations 15 d 18, caiact€ri56 en ee que r^paisseur des pigments
dMei«rencesedtueaitre0.1el0.6|m
2a Doament selon Itew quelconque des revendicafionB prteMentes. caiact£ri5i en
renee lundwuse son! presents dans ce document & laison de 0.3 gAn^ a 10 gftn?.
21. Docunent selon rune queloonque des revendhafionsprte£def<es.caiacl&i56 en ce que les^^
dfrectemeni par pubMsaiion callxidkpie dUne n«Ke couche dtixyde m£^^
cfoxyde maaUkiue audessiis din endutt ou moin desdte pigments dMeri^^
mo« de pigments rMteMssam b lumUre ne possManI pas de pnp^
quelaoouched'oovdemetaliqueainsiappliquteaitessentiellementlameniecouleurouum
tafte ft oeBB des pigments appliques sous fcnne de moU.
22. Document selon Rnequelconque des rei«ndfcatiDnsprdc£dentes.cafact£ris^
dUdtt8upport-aiKleseou5eltouau<les8usdespigmert6d1nterf&enceappGquteunHiDrm£^^
motil • est prfeert on nwlH en ignes guaiocMes awe eiiet aio^n^ qu oonlienl ft celt
cNssant la tunriire pn)curant cet ^ de sorte qu\ra ou pbsieurs des couleurs aro^n<iel sent Mentx^
oouleur normale ou cotrpKmentaire des pi^nents dMerfd'ence lumineuse.
23. DocunKntseionlareyendicalion22;caractd{56encequ\mouplusleursdesoouleursaro^n<ielso^
hiprjmantdes pigments mfitalBques.
24. Documentselonlarenndieatk»22.ca(act6ris6enGequedes(nginentsfluorescentsoupto
m&ians6s avec lesdils pigments tfMerf tence lumheuse etAxi avec lesdils pigments riilkKssant la lutn'ke pro-
curant c^ eflet arc-en<iel au motif gulloch6.
25. Documert8elonlarerandication22;caracUris6enc8querefMaro«n<ielestobtenuenini^^
tr ans p a r ei < charo&tfbn pigment fluorescent cuphoqihorescent
2& Document sdon la rawndlcalion 22. caiactWrt en ceqiftinouplusieurspigmente
aim un des pigments rtlKchissanI b luniite elANi milang^s arac les pign^
pigment(s) AJorescenKs) montiant - loisqu1l(s) est (sonQ toftos^^ it to hariere uHiavioletle • de la lum'^ de
- det«donBinesdelongiietfdondeciff«(Gnls.doMIVne5tdmftentdudom^delc^
desdHs pigments dMerKrence ei r£IMctiissant b lumiire lora^
vi^e et rauire ooirespond S ceU de b oouleur nomiab ou convKi^^
27. DoeumertseloRl^queioonquedesrerandfealionBprte&tentes^caractMEfrencoqito
efletan>erHa'elesthvdm6enpariE»tregi5tredSnnpressioniransh^ -
t£ris6 en ce les pignwnts raitehissant b lunriSre priteentam reflet ari>enK3ei'e(
dent une ooUeur conipl^nienlare par rqjport aux p^nents
identique'ft b oouleur noniBle desdits pigriKniE dMerference lumineuse
dudtt moBI giflochfi sur chaqua c0t6 recowrent au moins partiellemem tne plK^
tent un mots nnprimfi.
EP0657297B1
28, Docin)entsdonruie(^iek»oquedesre«^^
des 111005 innprimte se chevauchant au nmins p
cfMeiffrenn tambieuseclfK^
w changanert deowteurdiiftert Insqu'oh les (teem so^
que le molif innprirni qui est le phB «k)ign6 de nteeiv^
BKJcssusqu est phjs transparent, oWenantdecettemanierBimdoc^
chementdutnoHunchangement constant
29. DociBnentsek)ntUtequeiccnquedesrei«ndica^
rence luirtrieiise sent oonienu dans ledit sifjpoiL
3a Doavnenl selon hue quekxxique des revendkalions prte&lentes, caiactfris6 en os qUa .est sous tonne de
EP0657297B1
RG. 4
European Patent ORice
Office europ6endes brevets j^^j EP 0 657 297 B2
NEW EUROPEAN PATENT SPECIFICATION
(12)
(45) Dale of pubficatlon and mention
of the opposition decision:
23.04^3 Bulletin 2003/17
(45) Mention of ttie grant of the patent:
30.07.1997 Bulletin 199701
(21) ApplicaBon number. 93203473.9
(22) Date of filing: 10.12.1993
(51) intCL^: B41M 3/14, G03C 5/08,
G03C 8/42. 6030 8/28.
G03C8/52
(54) Security document having a transparent or translucent support and containing interference
It tnit etnem durchsichligen oder duichschelnenden Trager und m'rt darin
Docunnent de security ayantun supporttiansparent 6u transluckle et cohtenant des pigments
d'Interference
(84) Designated Contracting States:
BECHDEESFR6BUNL
(43) Date of publicalion of application:
14.06.1995 Bulletin 1995/24
• A6FA-6EVAERT
2640Mortsei(BE)
• NATIONALE BANK VAN BEL6IEN.V.
1000Brussel(BE)
14,B-1000Brussei(BE)
Si
ID
Q.
lU
EP-A- 0490 825
EP-B- 0071 160
DE-A-3 810015
DE-C- 62 053
GB-A-202702
US-A-3011383
i) References dted:
EP-A-.0317S14
EP-A. 0518 740
EP-B- 0303 725
DE-A-4141069
FR-A-2429 232
GfrA.2035587
US-A-4428 997
• PATENT ABSTRACTSOFJAPANvoL8,n6.210
(M^2BH1647) 26 September 1984 & JP-A^9 098
891 (DAINIPPON IN5ATSU) 7 June 1984
• PATENTABSTRACTS(>FJAPANVoL10,no.115
(M^74)(2172) 30 April 1986 & JP-A40 244 588
(KAZUHIRO NARA) 4 December 1985
• PATENT ABSTRACTSOF JAPAN vol. 10,m». 191
(M-495K2247) 4 July 1986 & JP-Ar61 035 985
(DAINICHI SEIKA) 20 February 1986
• 'X)plical Ada", 1983, vol. 20. No. 12, Selten
925«7
• "bffcetdrucktecbniir by Helmut Teschner,
seventh edition, 1990, Fachschriflen-Verlag,
FeUbadv ISBN 3.921217-14-8, pages 542ff. :
• brochure 'An introduction to d^ital scanning",
puMshed by Agfe^>^ N.V., 1994. NCUAV
6B 00 199512, page 11: "Density formulas"
• "The Reproduction of Colour in Photography,
Prinling&Tetevislon- by R.W.6.Huiit, Fountain
Press, England, fburth edition, 1987. ISBN
085242356 X, pages 70-71, p. 116 and pages
264-265
EP0657297B2
Description
1. FIeUofthelmrenOon
[0001] The present Invention relates to transparent security documents that can be verified on their authenticity and
are protected against counterfeiting by photocopying.
2. Badcground of the Invention
[0002] Security documents that must l>e verifiable on their authentid^ are e.g. an Idnds of identification documents
such as passports, visas, identity cards, driver licenses, bank cards, credit cards, security entrance cards, and further
vstbe-documents such as baniatotes, shares, bonds, certificates, cheques, lotteiy Udwts and aH idnds of entrance
lidtets such as airplane tidcets and railroad season-tickets. . • _. .
[0003) Nowadays, by the avaBabBSy of markedly fanproved black-and-white and cokir copiers it becoines more and
more easy to copy documents at high quaEty hardly to distinguish from the originals.
[0004] To protect the above mentkxted documents against fraudulent atteratnns and leproduciion by photOHspying
dHTerent technkjuesara used such as the mett^amlnating or glueing thereto of preprinted plastic overiayers; the printing
with special btks; the applkation of coatings or layers for example toaded with magnetk: 0^
iitg or melallizhg the suiistiats of the documents; incorporating hotograms; applymg fine Ins printing^ walemrarlcs^
fibetSrSecurily tlvsad^ Iglit dilllraclion mailo, Dquid crystal marics aixtfor sut>5tances caled nacreous, iridiscent or
hterference pigments.
[0005] In a particular case disclosed in U&P 4,151.666 Pght-transmissive pigments serving as diffuse reflectors are
applied by prfrifing to form a veriflcatkm pattern in a laminated Mentifkatnn card (I.D. card). In the specTication of the
same US-P the use of nacreous pigments \n verificatkm patterns has been described. Nacreous pigments, also called
peartescent piginents have Hghheflectton chaiacteristks that change as a functkin of the vioMing or oopyi^
The eired of changing cotorwHh viewing angle makes that nacreous pigments represent a simple and convenient
matter to built b) a verificatkin fisalwe associated with a noTKopyable optfcal properly
[0006] IntertierencepignKnts are h the ftarm of HghHefleciingGiystd platelets of appropriate thicks
cokir by inlerferenra. These pignwnts«(hibitacolor play that verges on bU^^
vrin altow only the copying of a ^ngle cotor, whereas other colors appear under different angles
words these pigrnents show another cotor to the human eye depending on the observatkm angleL HIe^ nacres
b accompanied by l)igh specular reflectance.
[0007] mmostlightinterfierencepigmenlstlietfansmlsskmcotorisgenerallythecomp^
[OOOq (H>servedb)transmissk)asorneparth»larligM interference pigments having more pronounce
pedshowapartkailar greyish cotor while obsenred in reRedton mode they havea more pronounced cokN^^
due to their specific built up and composHkn.
[0009] Transmisskm cokir of light interference p^ents is much weaker than refledton cotor, whnh cok>r seen in
the refledkm mode is called hereinafler 'norroaT cdkx. [ref. Numbeir2 In a series of MeailTechnical BuBetlns 'Nacreous
(PeariescenI) Pigments and biterference Pigments by LM. Greenstein Heniy L MatHn Laboratories Reprinted from
Pigment Handbook. >ft)L I. Properties and Economfas: 2nd Editton^ Edited by Peter A. 1^ (19B8) by pern
John WRey & Sons, Ina The Mearl Corpoialhm^ 41 East 42nd Street. New Ybric. hLY. 1^^
[0010] ' In inlerftonce. the refleclion and transrnisskmcokirs vary with angle of incfc>ence.Therefleclk>nmm^
and minbnum shift to lowerwavelengths as the angle of inddence increases (ref. the above mentkmed Mearl Technkal
Bulletin, p. 8: Variatkm In cokr with angle of incidence and observafion is referred to as geometik: metamerism or
: gonkxhromatism [ref. Johnston, R M. Cotor Eng., 5(3), 42-47. 54 (1967) and Hemmendinger, H. and Johnston R.M.
inCotor69(M.Rfchler.ed).MusterschmkH.6ot«ngen,6emrany
3w Oljecis and Summary of the hmenthm
[0011] It is an oli)ect.of the present Jnventkn to pnwWe a securitjr document having a transparent support and con-
.tabitagthfougM the presence of ngMinterferenceplginenlsaverilkaflonfeaturBlhat can not be 00
technkjues and wherein there is no needlbrspedattzeddevkss or oondHkms to veriVlh^
IROig It is a particular ol)iect of tiw present inventkm to provMe a security documerthavhg a transpa^
and containing at least one image or pattern in oorjundbm with Interference pigm^ ph^^
can not be copied photo^apHcally
{0013) Itisaspedalobiedofthepresenlbtvenltontoprovkieasecuritydocumenlhavingatranspar^
Gorl^)ri5il)g a layer including a plwtographically obtalried portraR In oorjUriclion with dilfererit
EP 0657 297 B2
that allow easy veffication by the naked eye of the security document
[0014] OtherobJeclsanda(hw)tagesofthepiesentbiventk)nwaibecoineclear<^
and examples.
[0015] In accordance with the present invention there is provided a security document as claimed fn cbim 1.
[OOiq By transparent supporr in the document accordbig to the present invention has to l)e understood a support
having a visible iIghH>locidn9 capacity less than 50 %. not bting excluded supports that have obtained a color by
incorporation of pigments.
4. Description of the drasvings
[0017] Fig. 1 represents a schematic sectional drawb)g of a security document according to the present invention
wheriBin Bght interference pigments A are present unBomdy in a layer on one side of a bansparent support TS and light
interfereiice piginenls B dilfererit in color witti respect to pigmerds A are preserit uinfcrmly h a layer on the otiier side
of saidsupportandsaid document containsaphotographicallyobtainedimagePH In the layer contahln^
A.
[0018] Fig. 2 represents a schematic sectional drawing of a security document according to the present Invention
whertin ligltf interference pigments A are present unHbrmfy-on one side of a transparent support TS and light interfer-
ence pigments B different in color viriih respect to pigments A are present uniformly on the o^
wherein the pigments A have underneath a pattern printed with 'commonT right reflecting pig^
[OOiq Fig. 3 represents a schematic sectional drawing of a security dooumem according to the present inveiition
wherein at one side of a transparent support TS a layer containing Bght interference pigments A has on (op a printed
pattern cont^ing common Gght-refleding pigments 1^ At the other sida of said support a printed pattern containing
said nomial pigments R is overprinted wHh a pattern containing light interference pigments B.
[0020] Fig. 4 represents a schematic sectional drawing of a security document acoonfing to the present invention
wherein patterns contaiidng light interference pigments A at one side of a transparent support TS are {irirried over (1)
a pattern contabiihsi 'common' light rellecting pigments R1 of wlrich he -color is conipiementary to the color of said
pigments A when seen with reflected Hghl (2) a pattern comprishg 'oofiimonr ligM re^
colored fluorescent or phosphoresced p^roerris or dyes RF. and (3) patterns ^
phoresoenl dyes that may be while by InspecUon with visibb Ight but emit colored tght when exposed to ultraviolet
light At the other sideof said support TSnghtinteriiBrencepigmentsB.areprintedover(1)anopaquepattemc^
metaliB pigments (aluminhmi or bronze flakes) M. (2) a pattern comprising me^ pigments M mixed with 'common'
nght reflecting pigments R2 having a cokir complementary to the cotor of saM light interf
with retteded Dght, and (37 a pattern comprising solely 1^ refleclhg Pigments R2 hav^
the cokir irf said light hteri^erence pigments B when seen virith reBeded Bght
5. Detailed Description of the Invention
[002.1] A layer and^or pattent containing saM light interfierence pigments (same or different) may be present at both
sMes of saM transparent support
[002g The securilydocumM according to the.present invention may contain in the same patterns antfo^
mixtures of different l^ht interference pigments.
[0023] In a partfcxilarembod&nent the support itself ooidalhssaUDghthterliBienca pigments an^
ty extniding a roett of a thermoplastie resin having homogeneoisly dlstra^
interference pigments, or is produced by coating a resbi sohitkm havhg saM pigment(s) dispereed therein foDowed
after coating by the evaporatkm (rf the soh«id(s>u$ed.
[0024] An mage or pattern presem In said docurnent may be Ibriiied by priMngt^
printing techniques and photographic technk)ues by which is understood herein that a visually hspectaMe image has
been obtained in said document via a BghH>atlern transmitted or iieflected ^
[002q The document of the present invc^niion by the presence ofsaM interference pigments OndudlngnAdures of
saki pigments) has at least in certain areas a different c6k>r wlien viewed with l^ht transmitted by the document in
comparison with HgM reileded by the (fcicument and has at least in certain areas a diirerem ro^
transmissfon mode from front or rear sMol These properties form verilfcation features that ca^
mon color copying niacMnes and alkw easy verlibatkin by the naked eye of the securi^ d«^
lOOaq PnleiredligMihterferenceplgfflentsaretilaniUmdkiKUe^tedmicaorolhermet^
inwMchthemetaloxidehaspreferablyareliradlvelhdeiXGomparablewim
orCTjtV
[0027] The platelets of metal oxide coated mfca pigments have three layers btsuchawaylhatoneachofthe broad
EP0657 297B2
feces oJ the mica platelets a very tWn coating of metal oxide is present
I002q The nnore tmlfiant interference pigmenls approach metaTic luster, an effect that is enhanced by the presence
of absoriition colorants. TiOj-mica readily lends itself to mcorporation of al>sorplion colorants. Ferric oxide {JFBjJjl
added tothe TiOj layer, for example Imparts a yellow colorviMcb in conJuncHon with a yellow im
s go)d.VVhenFe203 is used in place ofTiO; as the oxide coating on nito, these i^grnenlst^
color because of the inherent color of the FejOs. They range IrombroiizelodeepcopperHvd and hm
[0029] The preparation of such Mnd of p^ments is describedJn in the already mentioned buOelinTIa^^
lescent) Pigments and Interference Pigments*, p. 3-4.
[0030] A/lica pigments serving as a substrate of the interference coalings are a group of hydrous atuniinumsiBcate
10 mineralswithplaly morphologyand perfect basal {micaceoos)cleavaga Examples ofisuitablemicas are fcg.muscovite
KAl2(AISI,Oto) (0H)2. paragortte NaAI^CAISijOio) (OHfc. pMogopite K{Mg.Fe) (AISI,0,o) (OHfe. biotite K(FeJWg)
(AISl,0,o> (OH)i and lepidolite W/S^s^MJ^hjanOvi ^2 e«a.
[0031] Deta1$ about the application of metal andferrnetal oxide coatings on the inicaplatdets are further ghm
US-P 3.097,827. 4.434.010 and 5^059.245 and in published EP-A45 851. EPV\r313 280. D&-A-11 65 182, DErM2
IS 37 264,DE-A-3825702andDE-/^3617430andD&pS4141069.
[0032] In a preferred ernbodiment according to the present invenSon interference piginenlshaAig a oomposilibn
described in published German patent appScation DE-OS 41 41 069 are used. Said Interference pigments, called
'Glanzplgmente' according to said DE-OS are composed of silicaie platefels coated with eHher
20. A)afirSllayerorh-«Myre«tacliromelato9dde.and
. B) a second blade layer essential^ omsisting of metainc iron, rnoiybte
A) a first layer of highly refractive metal oxide, and
B) a second blade layer essentialy consisting of carbon or metal, and
25 o a IhM layer of highly relractWe metal (»dde.
[003^ BytbepresenceofaseriiMransparmicaibonlayersaidplateletshaveaMghchernicalresistanceiThecaibon
layer (s obtained by thermal decomposifion of o^gen-containing trydrocarbon compounds which for each two carbon
atoms contain at least one (Hiygen atom e.g. as bi carbohydrates such as sorbitol.
30 [0034] The tnetal layer B) can be formed in a rnedium of Inert gas 1|oinin^a&i>hase-deoomposablB metal o
pounds. e.g. metal.carboriyl compounds, and the metal oxide layers A) and C) are fbrnied by decomposition In gas
phase of volatile metal compounds in the presence of oxygen water vapour or mbdures thereof.
(0035) ThefbstlayerA)consistse.g.oflheaxidesoftilanfam.zirooniuni,tinantforIrDn.
[0036] Mica platelets double-side coated wBh one or mora metal oxidB layers for use as interference pi^nents are
3S cornrnerdalVavailabiee.g.uxter the tradenames IRIODINE(E.Merdc.DannRstadO.FLONACQ<^
land), MEARUN(TheMeari Corporation. NevirYori(.U.SA)andPAUOSECU(^ (BASF. 6eimany).Underthesetr^
names interference [^ents showing videl, red, green, yellow and blue colors in reflected light at 99* are avaBabte
onthemarkeL
[0037] Holding an Interference {rigmentKX>ated transparent support at 90* in a white light beam the transmitted 1^
« may be greyish^How to sPghtly brown viMch is a tolafly different color when seen in rellection (the main color). Such
effMvras seen as wen In IvdnphDic conoid ooatlrigscontaln'ng said plg^^
drffisrences of color in reflected and Iransmmed light cannot be photohoopied and fo^
feature.
[0038] . Atoreover,lool(tagatacoatedbluainterferencep^n)entlayerunderdifferentr^clionanglestheabluecolw
*s seen under a reflection angle of 90° will at a reflection an^e smaller than 45* turn into yellow, green interference
pt^rients obtain under these drcumstanoes a greyish shade, whereas the violel and red pigmeiils show a brow^^
grey iHie. In tran^itarency hspecUon mode l>lue Hiterliereiice become Ixnown-yellow, magenta biterference pigmenls
tum green, and the green ones turn magenta.
[0039] Preferred Wefferenceptetetel-typopisniBnts for use according to the present frwentlofihavealargest^
so diameterprdefabVbetween5arM2aO|miandmqrttpre«eiab^of25|imlo30|mThetMdcne^
MOIenoo^ pigmanis is preferably between 0.1 (un and 0.6.|un and more preferably between 0.2 pm and 0.4 |ua
-|004<q liiordertobbtainspedalverilicalion^ectsunderultravidetllghiexposuretheinterf^^
used h admlxlurB withflucrescent or phosphorescent substances and optical br^enbig ageiits.
[0041] .By way of example tile SglitiMeifierenoeplgrneritsAoftlie above drawings are biiieBgMMeifiereiioB
55 sudias»aiOSECUiS(lradenameofBASF-6ermany)pigmeitfoodeEC1408vvbid)showswhe^
mode a vi>M blue (iolor. Seen In relleclion their color clenges in shade by changing the obseiva^
observed in Iransiiiission through said transp»ent«ub5trate saki blue pigments change t^
comes con^lementaty lo blue. Le. yellow, sfightiy darkened with a brown shade that is probably due to very smaO
EP 0 657 297 B2
impurities. A yellow fight interference (rfgment such as IRIODINE (tradename of MERCK - Gennany) jngmenl code
9331 has wheri observed in reliection mode » yellow cotor; seen h Iransim
complementary in color. i.e. blue. This is in accordance with the general propeity of BgM interference pigmerts of
changing their color comptefnenlarily when changing the'r mode of viewing going from reflection to transmission mode.
5 10042] Tests have been carried out in prinfing a security pattern on a transparent substrate in such a way that one
' part of a printing pattern vras printed with blue light interference pigment (6.g. PAUOSECUf^ EC 1408 or FD 4187 of
BASF - Germany) and another part was printed using a yellow interference pigmerrt (e.g. IRIODINE 9231 of MERCK
- Germany) By changing the viewing conditions from transmission to reflection mode the dHferently printed parts
changed their color complementarily, so that the colors became imrerted, which is as already been said, an effect that
10 cannot be reproduced photographically by color copy&ig macWnes. Common xerographic copying machines make
prints againslawhitebackgound (the ojlor of the side of the cover of the rhacMro^
reflecting). The BgMlnleiferencepiginents that fro the BgMsource have high refl^
•whereas the •compleinentaiy' color b reproduced wim transmitted BgM refleded by said COT
' [0043] SaidprDpertyprovktesastrongsecurityfeaturowhichmakese.g.thatwhenayeltowli^
IS back^ound Is sunounding an Wwmatfon pattern printed with a blue Hght interference pigment pattern a copying me-
■ chine operating with transmitted light (that is rertected by its white cover) virill provUe a copy that has the printed Wor-
m^tton h yellow surrounded by a blue background which b the compleinenlaiy In cotor from what can be seen directly
In reflected llgM not passing through the document .
[0044] Further it has been found by us that when cop]^ a.transpaient document printed »»Hh light interference
20 pigments and overpiMed wUh a fine gulHocbe deagn wtti common light leBedhg pfepient being no Bght interference
pigment, the cotor of thegullk)che pattern in the photocopybdafeiertwhette
of the transparertdocument(orf9ina0 directed lowardslhelightsourDe of Ihecopy^
WJith the right d said source diected through the rear of the transparart document l^^
image background at the front shJe receiving reflected Hght from the whBe Bght reflecting cover of Ihe machine.
25 [0045] inthelirstcasesakl-common-plgmentscontainedhlheguiltochepattemarBreproduce^
cotor and the light Interference pigments are reproduced In the transmissfon mode in tbe^ complementary colors.
[0046] In the second case the photocopying machine doM not see in irfleded Bght the pattern of saw •«
lightrenecling pigments that have been piWed on lopoftheHghtinterferencepigmeritsso^
anyrnore. while the ight interference pigments remain copied In their complementary cote
30 [0047] The 'common' light reflecting pigments can be prirted underneath or above the Bght interferes
[0048] Tlius, when in the above combinatton of Mbmialton pattern and background a fine guito^
e g. Ones 3 mfcrons vride, is printed with common yeOow cokired pigments fredow Qght rcflecthg pigments) being no
ligM hterterence pigments ttie dMerences behween the copy and the origftrf
the cotor of the guBtoche fines wiH be reproduced«wctiy but win not be detectable against the y^
35 interference pigments seen by the copying machhie.
[0049] In the embodiment illustrated in Fig. 3 the Bght reflecting pigments R can show a rainbow effect (are iridbcent)
wherein one of theirrainbowcotors has the sahwhue as thecotoroftlie BgM Werterencepignwntsta^^
[0050] In Ihe embodiment illustrated in Fig. 4 the Bght reflecting cotors showing rainbow effect (rrften used in security
documents) are used In a printing k)k containing metaflto povuder (ag. ahimlnium or brcinza). Printed underneath the
40 HgM interference pigments the metaBto powder being opaque btocks B^ and prevents copying of infometion present
on the other side of the transparent support. Opad^ftont and back Images may be prinledonto^
the patterns contaWrig BgM interference pigments. The prinUng on boUi sUes of the transparent support may be in
perfed fiontA>ack registratton using a therefor adapted prii#ig machine such as a "Simu
for printing security documents.
45 [0051] VVhenthedesignofthedocumentisanBngedihsuchawaytettheBghtlnterterencepigmentpatlerndoes
nd cover coinptetely the prhtfcigpatlefnof the BgM reflecting pigments undemea^
shows the I^M refleclk^ pigmerts in their own color on the ihirt or rear side of the documert in the non^
only. In the covered zone the DgM MeriiBrence pigmenb show in reflective mode their
[0052] On inspection btransmlsston mode (holding tt»documertto1he BgM) or copy6igvi«h to
50 ' patteinsofcommonBght^flectlngpigmentsfrorofroMandrearsktoofthedocuinertareadded(comblne^
. forni an uninterrupted area h the fieM of Bght interference pigments showAig theft- own complementary cotor or com-
birratfen of saw complementary cotors in overi^)ping zones, whk* may result ft» a contk^
comptementary cotors each represert a complementary part of the vbible spectnim^ M fe the case
congroency a zoi>e conlafcilna yeflowTOflecling Bght ftilerference pigments and a zone conW
55 interference pigments.
[0053] UgMinterferenceplgnientsmsvbemhedwIthfluorescertorphosphorescertplgmentswIlhoutbto
Bght emitted thereby. UgM interference pigments have always some transparency
reflectance.
5
EP0657297B2
[00541 According to one embodiment the above inenBoned photograph^
by means of a black-an<^white or colour developed photosensitwo silver
it$elf orh a nonJighl:sensitive image receiving material having a transparerU support
[00551 Acairding to another embodiment the above mentioned pholograpWcally bbtah^
duced by means of a nonimpact printing technique in vAich analog or digital input signals for controaing the printing
• of said linage or pattern stem from Bght-infomation originating from a >*a)le origtoal. which BghHnlbimalion may be
transformed iritD eiedrical signals that can be transduced and stored. e.g. on magnetic tape or optical disk The visible
original may be an object or Mng being or an already fomied photograph of these.
[0056] Asurveyofnon^mpadprintlnglechnlquessuchaseleclro(pho»o)graphicprihting,inkjetp^
leal printing and thermal transfer printing is given by Jerome L Johnson in 'Principles of Men bnpad printtogT Palatino
Press- Irvine. CafifomlaU-SA (1986). i^^^^
[OOSn inaccordancewithanembodtaertaccordingtolhepresentltivenlionlherBisprovfdedadocu^
a photogiapNcalV oMalned taage or pattern and unifbnnly distributed
prescnlhthedocurnentlncoinbinallonwithaprinledpaitemconlaininginterfe^
the color of the unifom>ly distributed Werference pfements.
(005q In accordance with another embodimenl according to the present inveirtion there is prc^M
includingaphotograpWcaDy obtained Image or pattern andhavftigaleach side (rfitstiansparm^
a byer whereh interfwence piginerte are (fislributed unilbnnV. and wherein saH
support have a different color Iv Um presence of different iriterfeieiice
[OOSq bi accordance ««h a further embodiment acopniing to the present invenfion there is pio^
wherein urBbrmly distributed hiterfeiencepigmentsarBpresenthcorobinaB^
monligM-refteclingplgmentsordyesorwhiteSgMieltectingpigmeii^
under the copying angte Is pref^Myihe same as the color of said printed light-absorbing substances -preventing
thereby succesful photocopying of the printed Infbnnatlon that remains stiBieadabte by the h^
observation angle. . _.
[00601 AccordingtosliUanotherembodimenlinadocumertoflhepresertinventionapattemofprintedinterference
pl^nents is present underneath antfor on top of a layer or support having a color substantiaBy the same a^
of said pattern containing said Interference pigmerts when seen In reflecthmor transmission mode.
[0061] Accordingtoanembodftnenththesecuritydocumenlaecordlngtothepresertinventlondifferertinterferen^
pigments are presentuniformlyeachinadifferentl^alopposite^of said support and Bl least one of said
has underneath antfor on top a pattern containing common Bghtreltecting pigments and/or dyes having no light inter-
ference properties, and having preferably a color substanttaBy the same as the color of at teast one of the ta^
pigments when seen in reflection or transmission mode.
ibofin /Uxoniihg to another embodiment in the security document accordng to the present invention at teast one
- hgcormnonight^eflectingpigmenteandtordyesispresemwhichpatiemlsatteastparilycoveredw^
a pattern containing Interference pigmente.
[0063] According to a further embodiment h the document according to the present inversion the support has been
coated directly by sputtertig with a thin metal radde layer or has bem coaled withsald
coating or pattern of said HgM interference pigmente andto coaling or pattern of BgM relleding pigments hav^
light Inlerfprenca properttes taking care that the thus coated metal oxide tayer has substantially the same or color
complsmentaiy to the color of said pattemwfee applied pigmente.
[0064] Accordingtoaspecblernbodimcntlhedocument.aecordingtotheprBsentlnventionhasonthefrontand^^
• rear dde of ite support underneath antfor on top thereof unifonnly or pattemvifee applied interferwco pigmente in the
fomi of a prteted guinoche nne pattern with rainbow effect, contelnhg therefor 11^ reflecting pigmente sh^
effect so as to have one or more of the ratobow colors the same as the normal or comptementary color 0
intwference pigmente: In a partlcubr case said one or more ol the rainbow colors Is obtairied prW^
[0065] manotherembodimentlluorBScentorphosphorescentpJgmenlshavebeenmhedwiftsaidligMbi^^
pigmente and/or with saw light relledirig pigmeiite giving said rai^
effect is obtained by printing a transparemvamtsh loaded with a lluqrescent or phosiriiorescentp^ .
[0066] According to a stil further ernbodhnent the document acccrdingto the present irivenfi^
rescent plgmerit(s) that Is (are) mixed with one of said Kght reltecling pigmente antfor m&ed with said llgM interference
rigrnentewhenebywhen«iposedtoultiaviotetl^saidlhiorescentpigmenl(s)sho^
Stenttw^ are observed Whdervisibte ligM conda^
color oTsaid interiterence pigmente.
(00E7I inapartlcuterernbodfcnenlaguillochepatleriiwHhralnboweffectbprlriW
on the ftoni and rear side of thb support; the light relteelihg pigmente showing
EP0657297 B2
complemenlafy color with resped to the pigmenis pfWe*
of said Bght Werference pigments, and whertin parts of said guiOoclie pattern at cittter sMe cover at least partly a
photograph or printed pattern or complele a printed patlwa
[0068] In a particulaily interesting emlwdinient the docurnent according to the presenting
5 patterns at least partly covering ead) other and s^ patterns each contain (a) different Dght interference pigment(s)
the construction and composition^of wMdi i; such that they show a different cp^
olservatlon angb. and wherein the printed pattern most renwie froin the observer has higher cove^
pattern printed thereon which Is more transparent, hereby obtaining a document that shows in the «»vertapping pattern
. areaacontlnuouslychangingcolorshfflljychanginggraduallylheobserwallonangle.
10 [00691 AlayerconWningunHbmilydlstributedBgMinlerferencoptgmentsnBybew^
containing said pigments In dispersed form and a dissoNed binding agent or containing said pigments dispersed to-
gether with a binfing agent In the form of a latex. Alter coating the sohrert or dispersing R^^
by evaporation Any coating techni(H» for the appOcationBf thin liquid layers may be used a^
field of the manufacture of photographic silver haOde emulsion layermaterials.e.g. doctor btedeeoa^
15 coating, meniscus coating, air knife coatbig.sllde hopper coating and spraying.
• [0070] According to a special coaBng technique the ligM interference pigments are applied in a radlatlorH^
binder or binder system wherein e.g. monomers act as sohrent for poJymers or prepotymers as desoBjed e.g. In pub- .
Ilshed EP-A 0 522 609. so that after coating of the liquid coating con^osition no solvent has to be evaporated.
. [0071] lnaa»rdancewithaparticutarernbodlmentunifonnly(»strlbutedinterferencepi^^ -
20 that is transferred by a sWpplngoff procedure to built the dctounent of the present Inventioa Such procedure is de-
scribed in publlshed EP-A 0478 790 but Is applied therein for controlBng the virtuteness of an image present on a
pennanentsupportusingfbrlheslilppln^andlransferproccdureatemporaiysu^
noni>hotosensitive layer containing fluorescent whitening agent(s) in a hydrophiRc coilold binder.
[0072] Accoiding to a spedal embodimentihe ight irterference pigments are appBed In the form of a f^ment-trans-
25 fer-foD vAerefrom by hbt transfer the pigments are transferred unJormly onto the substrate of the security document
[0073] Stillanothera)atingt?chnkiuesuftedforuniformlyapptyingsaklpigmentsisbydiypowder-^
on a hotnnelt resin layer wherein they are impregnated by pressure and heat On top of the p^menls an adhesive, e.
g. vrax may be appBed to improve adherence to the selected subsfrate;. That substrate may have hydiophiHc or hydro-
plwliic surface properties.
30 [p07<q Spiay<oatlngmaybeappliedforcovertngthevvholesurfeceofthesubstiateoronlyapartth
Tight biterfeience rahbow^ffects". By using varying mixtiBes of (Bfereot interference plynents the intensity of one
colorcanbemadeto(tecreasegraduallyvvh3eanincreasingGOkirMensttyofano1herpigmentcomesup.^ ■
eye wiB see the rainbow effed varying according to the pen»ption angle and wria recognize the basic colw
the sprayed plynents.butaphotoeopler operating withafixed copying angle vnllonlyreprod^^
35 brovm color and not the colors of the interference pigments that can be seen under dHTerent inspection angles.
[0075] The Interference pigments can be used for pigmenting a commercial coating varnish which may then be used
for pre<»atlng a security document substrate. The coalfcig may proceed with common varnishing or bnpregnation
machlneiy Instead of using printing presses.
[007q As already mentioned herein the unifomily apfrfied Interference t^nts are advantageously combined with
« Imagfrwfee or pattern-wise appfled interference pigments of another color.
[0077] The image^ivlso or pattenHifee application of interference pigments proceeds e.g. by pm^^
OMntaMng said pigments. Suited printing processes are eg. planc^raphlc oflset printing, gravure prft)ting. intaglio
printing, screen prinSng. fiexographic printing. reDef printing, tampon printing, InkJet printing and toner-transfer printtng
<5 [007q For use In printing on hydrophlBc layers or substrates the Ink contains for example a 15 to 20% by weight
mb(hire of the Interterence pigments in a solutkm of ceVulosa nitrate h a polyeltvlene eth^^
adherence on hydrophilfc; coltoid layers such as gelatirH»nlaining layers used in imrecoi^
advantageously applied wHh a commercial saeen press using a polyester screen with a 77 and 55 meshi The Inter-
ference cokirs gradually appear on drying ttie ink.
80 [0079] ThusappnedhkpattemsonahydrophHteimage-receiyfnglayerlbrOTR-bnageproductionremalnunchan^
during DTR-piocessing.
[0080] The presence of the Bght Interference pigments in oiie of the layers of the security document does not affect .
the p«)ssB>ility to print thereon further graphk: oralpha>numericalinibnnation by any known printing technfc]ue.
[0081] For easy visual verifkation the light Interference pfgrrients are present preferably b) a security document in a
55 coverage of 0.3 g/mz to 10 gftriz and more pr^eraNy ha coverage between 0.7 gftr? and 3 g/m?.
[00821 The printing of a light Interference plgmen^xntaMng pattern may proceed on a substrate already
e.g. by a holograffl. Gght-diflraclion pattern. metalBo pattern that can be vlev^
properties of the Interference pigments are added thereto.
EP0657297 B2
IP083] The printed pattern contaihtog Werfefence pigments fomis no obstacle for a good aiBierence with bnJnated
plastic i^esinous covereig nraterial. By proper seleclion of the binder
lammated thereto.
[0084] According to a particular einbodiment the light interrefeiH»|rigmenHx>nt^
5 support. e.g. polystyrene support, wherelrom the ink layer can bis stripped off and transferred to a pemianenl support,
e.9. a glued and preprinted substrate of a security documenL The ink layer, appBed overaD or patteriHMise. after leaving
the temporary support ewers underlying preiKlnted data on the pennanent support. For prevent^
these data have the same cokir as the interference pigment layer vvhen seen under the co^
image contrast is availableso that copying of the praiwlnted date Is no longer po^
10 pigment-contairanginklayerlhallstranslueerttheundertyihgdatecanbevisualVlnspededthOT
the perception angle.
[0085] In accordance with the preceding embodimenl a security document according to the present invention, e.g.
serving as I.D. card, is preferably in the form of a laminate In vi*ich the informatiofrcontaining layer^s) are sealed
between protective leshous sheets. I.D. card laminates may bd built up as described e.g. in US-P 4.101 ,701 . US-P
»5 4,762.759, US-P 4.902,593, publisbed EP-A 0 348 310 and published EP-A 0 462 330. By laminatton tamper-proof
documents are produced vdik:h do not alkw the opening of the laminate without dan^
The destrudton of the seal wni leave ^risuat fraude traces on the securi^ documenL
[0086] InaccordancewHhafirstmodeinlhesecuritydocumontaccordfogtolhopresenlinventfonablack-and-^
photograph in the fonn of a silver image is formed by the silver salt dilhision transfer process. caDed herein DTR-
20 process. According to saM process dissoM silver haBde salt is transfeiTed knagewlse in a special image racehiing
layer, caBed devetopmenl nuclei containing layer, for reducing therein transfeoed siher salt, saiid devetopmeni nudei
containing layer contains itself andfor in an overlaying andfer an undeilayihg byer uniformly distributed therdn saM
interfeienoe pigments.
[0087] TheligMinteiferenceplgmentemaybepresenttilherlnthelnageHrecelyinglayeritseirantf
25 meaUe top layer and/or h a sidjbing layer covering the support.
[OOaq The presence of a dried vraler-impeimeable ink pattern on the imagMecdvhg layer bkKksini^im^
matkm. Thereby it is possible to anange e.g: fine nne pattens such as guiik)ches in the phok)graph creating IM
anadditkmalveriRcalkmfeature.
[0089] Theprihdptesofthelm1)rocessaFedescrfl)edinU.S.patent^k>.2.3S^,014ofAnd^6Rott.issued,hlne20,
3» 1944.AccoidhgtosaMprocesssilveroomplexesai8image^lsetran5llHredbydiflbskmlh)masa^
l^toanbnageH«cdvinglayer,wheietheyareconverted.httwpresenceofdevek)pinentmictei^
For this purpose,an Image-wise exposed silver haMe emulsion laywisdevek)ped by me^isota^^^
in the presence of a so^alled siver htfide solvent In the exposed parts of the sihfer haBde emulston layer the
haUe is deviekiped to meteinc sih«r so that it cannot dissohn anynxwtr and consecHienU^
35 exposedpartsofthe^rhalldeemulsk)nlayerthesaverhandeisconvertedhtoso<iri}lesih«rcon^
of a siirar haSde oomplexing agent, acting as sihier halMe solvent, and saki complexes are transferred by dlAislbn
into an knage-receMng layer being in wateipenneable contact vrith saM emulskH) layer to fomt by the catalytk: actkm
of s^d development nudel. h s»«alled pliydcal devetepment. a silver-containing imago in the image-receiving layer..
[0090] MoredetaBsontheDTR-processcanbefoundinThotographteSihrerHarKlelSifiuskinProcesse^
« and E. Weydo, Focal Press. London, New York (1972).
.10091] In accordance with a second mode in the security document according to the present inveniion a cok)r pho-
tograph in the fbrni id one or more dye images is formed l>y ttie dye diffusion transfer process (dye OTR-process)
viAierein the image-wise iransler of dye(s) Is contnOed by the devetopmert of (a) ph^
layer(s), and whereh dye(s) is (are) Iransfened knagewise in a special bnage recehitn^
« tbdng the dyes, said nwrdanl layer and/brap overlaying and/br an undeilsvinglaywc^
theiellVDugh saU Interference pigments.
possg Dye diffuston transfer reversal processes are based on the image-wise transfer of diffusible dye mol^
from an frnage-wise exposed sSver haDde emukton material into a vralerpenneable Image-fBceiving layer containing
an)ordant<brthedye(siThetaage-tt«sfrdifliBtonofthejdye(s)isoonlnltedbyttiedev^^
. -50 >iifeeaq>o6edsilverhalkleenwlsk)nlayeis,thatfDrtheprodiiclh)noraniul^^
sMzed and contain respediyely a yethw, magenta and i^an dye mbleato
process^ has been ghren by Chrislian a >fen de Sands In Angewi Chenk - Ed. EngL 22 (1983) n* 3, 191-209 a^
paiSculariy us^ process is described bt USP 4,496,645:
[009^ For use in dye diffuskm transfer photography the type of mordant chosen wiB -depend upon the dye to be
55 mordamed If acM dyes are to be mordanted, the bnag&receiving layer being a dye-mordanting bv^
polymeric mordants such as polymers of aiiiino^uanMinederivathms of vinyl methyl ketone such as d
2,882.156. and baste polymeric mordants and derivatives. e.g. poly^tiylpyridlhe. the methOiMoluene sulphonale
of poly^2-vinylpyridtoe and smBar compounds described in U&P 2,494,430. and the compounds described m the
8
EP 0 657 297 B2
published DE-A 2,009,498 and 2,200,063. Other mordants are long-chain quatemaiy ammoimnn or phosphonlum'
compounds or ternary sulphonKim compounds, e.g. those described m US-P 3J271,147 and 3;271,148„ and cetyltrt-
methylanunonium bromide. Certain metal salts and their hydroxides that form sparingly soluble compounds with the
add dyes may be used too. The mordants are dispersed or molecularly divided in one of the usual hydrophiHc
5 bMeis in the image-iecehringlayer/&g.i[) gelatin, polyvin^^
esters.
[0094] In US-P 4.186.014 cationic polymeiic mordants are described that are partlculaily suited for ftdng anionic
dyes. e.g. sulphinic add salt dyes that are vnage-wise released by a redcuHeacliDn described e.g. tn in published EP-A
. 0,004.399 and US4» 4,232.107.
10 [0095] The DTR process can be utilized for repiDduchglin»origlhal5e.g. printed documents, as as for repn^
dudng continuous tone originals, e.g. portraits.
[00961 BythefadthattheDTI^tnageisbasedondifluslontransferofbnagingbKpedientstheb^
and optionally present coverfcig layer(s) have to be waleipenneabl&
[0097] The reproduction of Uack-^nd-whitecontimious tone Inages by the DTRjXDcessieq^
>5 cording rnaterial capable of yielding irnages with considerable lovw gradation than is normalV applied in d^^
reproduction to ensure the correct tone rendering of conb'nuous loiies of the oiiginaL In documem reprodu^
haOde emulslort materials are used which normally mainly coMah sRver chloride. Silver chloifde not only leads 1o a
more rapid development but also to high contrast
[0098] In U.S. patent No. 3,985,561, to be.read in coitiunclhm herewith a light-sensithfesihwhalidemate^^
20 descii1)ed wherein the sihrerhaBde is predominantly chlorida and this material is capable of Inmb^
Image on or in an Image-receMng rnaterial by the diffusion tiansftf process.
[0099] According to said U.S. patent a continuous tone image is produced by the diffusion transfer process n or on
an imag&feceiving layer through the use of a light^nsith» layer wAnch conta'ns a mbdure of siNer chloride and silver
iodide and/or silver bromide dispersed in a hydrophlKc coKoid binder e.9. gelatin, wherein the silver chlortde is present
25 in an amount of at least 90 mole % based on the total mole of silver haBde and wheren the vreight ratio of hycfrophHic
colloid to silver haKde, expressed as sBver nitrate; Is between 3:1 and about 10:1 by weight
[01 00] With these light-sensitive mater^ls successful reproduction of conSnuous tone images can be obtair>ed protv .
ably as a result of the presence of the indicated amounts of silver iodide and/or silver bromide and of the defined high
ratio of hydrophiHic colloid to sRver hallda
30 [0101] According to li.S. patent No. 4,242,436 illcevrisa to be read in coi^undion herewith, the reproduction of con- .
tinuous tone images can be improved by developing the photographic material with a mixiure of developing agents
comprising an o-dhydroxyt>erizene. &g. catechol, a 3i>yiazolldlnone &g. a 1-aryl-3-pyrazolIdihone an^
p-dihydroxyberizene, e.g. hydnx|ulnone. the inolar amount of the o^flhydro^^
the molar amount of the 3-|vrazolidinon&, and the pHlihydrDivbenzenB if ary behg present h
35 5 %wHh respect to the o-dBiytfroxybenzene.
[0102] Suitable development nuclei for use In the above mentioned physical development in the Image receiving
layer are e.g. noble nietal nudele.g. siNer, palladium, gold. platbHim, sulphides, setenides or tellurides of heavy metals
such as Pd, Ag, Ni and Ca Preferably used development nudei are colMdal PdS. AgjS or mixed saver-nicl[elsu4>hide
particles. The amount of nud^ used in the image receiving tei/er is preferably between 0.02 mght? and 1 0 mgAn^.
40 [0103] ThelmagereceMnglayercor^)ri5es(brbestgnagingresullsthephysicaldevelopmentnuc>elinlhepr
(rf a protedWe hydrophilic coltoid. e.g. gelalin and/orcolloidai sPica. polyvii^ al^
[0104] Tlie transfer behaviour of the complexed sihrerlargely depends onihe thldiness of the bnage-neceiving layer
and the Mnd of binding agem or mbdure of biKBng agents iised in the nudel containing layet
inrKige with high spectral density the reduction ofthesihrersaBs diffusing ink) the Iniagere^^
« rapMVbdorelateratdiffiisionteoomessubstantiaLAnlmageHecei^
k) US-P 4,859,566.
[01 05] An imagefeoehring rriateriai of this type is very suitable for use In connecSon with ttie present invention and
.contafcis a water-lmpermeablesupport coated with (1) an bnage^ecelving layer containing physical deveiopmeflt nuclei
and Merf^erence pigments dispersed in a waterpenneabte binder and (2) a waterpemieable top layer free.liom devel-'
so opment nudei and containing a hydrophillc colloid, in such a way ttiat
0) the total solids coverage of said hvo layers (1) and C2) is e;g. at most 2 gftniz.
(11) in layer (1) the coverage of the nudei te in the range of ai inglhn? to 10 ingAnZ. and the coverage of
in the range of a4 to 1.5 g/knz. and
ss p In said lo|>la^ (9 the coverage of hydiDphilccollokl is in the range of 0.1 to 0.9 gAi^^
[OlOq The coalhg of saM layers proceeds preferably with slide hopper ooater or curtain coater known to those
sldlledtntheart
EP 0 657 297 B2
[0107} Acctirding to a particular embodiinemttidniicleicoma^
hydrophaic coltokl undercoat layer or undercoatlayer system havmga coverage in tlie range of 0.1 to 1 gftn^ of hy-
drophnic coBold. the tola! soBds coverage of layers (1) and (2) together with the undercoat at most 2 gfrn^. In
connecOon vnth this einlwtfiment the nacreous pigments may l» also to
5 Included th^in instead of being present in the nuclei containing layer.
10108] The undercoat optionally Incorpcrates sul)stanc8S that Improve the image quaily, heorporates a subh
stance Improving the image-lone or the wWteness of the imago Ijadcground, For
alluorescent substance, stiver coinplexingagent(syandtordevelopmertlnb*itoriBlea^
proving inage sharpness.
10 [0109] Accordingtoaspeciaiembodimerrttheimage^eGeivii^layer(1)isappnedonanundeitoatpl^
of a timing layer h association vnth an acidic layer serving for the neulralizalion o^
By the timing layer the Itao befoTB neutralization occurs is estabTished, at least In part by ^
alkaline processing composition to penetrate through the tWng layer. Itoterfals
f ming layers are disclosed in ItesearchfJisclosufe July 1974. Hem 12331 and July 1975, item 13K5.
<5 PHIOJ In the image^eceiving layer (1) and/or in said top layer (2) antfor in an altefrneulraliring undercoat geialin
is used preferably as hydroptvllc colloid. In layer (1) gelatin is present preferably for at least 60 % by vinight and is
(qyOonally used in corjuncHon with an other hydrophOic ooDoid, e.3. polyvinyl alcohol, celhilosa derhfaUves. preferably
'cait)Oxymethyl celkitose.. dextran, gaDadomannans, alginic add derhratives. e.g. alglnic add sodiuro.salt and/orwa-
tersdublo polyacrylamldes. Said other hydropWfc colloid may bo used also In the top la^
» and in the undercoat in an amount lower than the gelatn content
10111) Theimagweeehfinglay^andtorahydrophBceolloidlayerinwateriienneablo^^
conipiise a silver haSde developing agent andfor sihw hdide soh«nt ag. sodhim Ihlosulphate
proximaiely at g to apprtBdhately 4 g perm?.
101121 TheinagwBcehteglayerorahydrophilicooltoidlayerinviiateri^^
25 prise CDlloidai Silica
10113] The Image^eceivingbyw may contain as Physical development acceleratoi^ In operative 00^
developing nudd. thioether compounds such as those described e.» h D&A-1.124.354: US-P 4,013/171; U&P
4.072.526 and in EP 26520.
[0114] AccoidingtoapreierrsdembadimenltheprocessingiquidandtortheDTRNage-receivingmaterialco^
30 at least one bnage toning agent In saM case the image toning agent(s) may gra^ialy transfer
Image^eceM^ material Into the processing liquid and keep therein the concentration of ag^
In piadlce such can to reaHzed by using the sihrer image toning agents in a coverage In the range from 1 mg/n^
20 mgAi? b) a hydrophilic v»terpemieable colloid layer.
IMiq A sunrey of suHabte toning agents is given in tto above mentioned book of Andre Rott and Edith Weyde, p.
as 61r65. preference being given to 1-phenyl-1H-tetrazole-5*iol. also called 1-phenyl-5^nefcaplo-te^ra^Dte, tautomeric
stnidures and derivatives Ihereof'such as 1-(2,3^imethylpherq4>«-mefcaptotetFazole, 1-{3,4-<limelhylcydotoxyl>-
54nercapto4eliazole. t-(4-methylptoriyl>«4nenapto4etrazole, H3<i1loro-4-methy^^rtIenyl)-5^nercapto-tetrazde,
1-<3,4-dichloropheivl)-Smercapto4eliazole. Further patticulaity useful toning agents are of the dass of thioftydantoins
and of 0)0 dass til pheityl substituted mercapto4riazoles. StBI further toiwig agents suitable for use in accordance with
« the preferred embodiment of the present invention are the toning agents described in published European patent
applications 218752. 208346. 218753 and USJ" 4.683.189.
[Oliq In the security documents acconfing to the present invention tto transparent support is e,g. a'dear resin film
support or sudt support contaMng smaH anM>unts of pigments or voids opad^ to some dej^
exmple; vvNta TC)^ particles as described e.g. in published European patent applicatiqn (EP-A) 0 324 1 92 are hcor-
4s poratedttwrdn.
[0117] Orgai^ resnis suited for manufacturing bansperent filro supports are e.gL pdycartwnates. polyesters, pref-
erably polyethylene terephthalate, polystyrene and homo- and copdjnners of vinyl chkirida Fuit^
celulose esters e,g. cellulose triacetate.
[0118] The dMve mentioned DTRImage-receivhg materials may to used in cotjundion
» silivB material containing a silver haSde emulsion layer. For continuous tone reproduction tto sitver haHde comprises
prderably a mbihire of siver dilorlde. and dher iodide aiidftv sB^
moia of tto s»nr haffidft behg diver dtloiiite. and tto ralk> by weight of hydrops
as dhwr nRrate is tetween 3:1 and 10:1.
[Pliq Tto binder for tto silver toiide emulsion layer and other optional layers contained on tto knaging element
-° prefeiablygeiatln.Butindeadofortogetherwithgelatin.usacantomadeofonea'moreothernaturalOT^
- hydrophmc coRoids. e.g. albumin, casein, zeh. pdyviriyl alcohol, alglnic adds or salts thereoT. ceBukse derivatives
sud) as cart>09(ymethyl odiuiose. nwdilied gdatihk e.g. phthak^ gelatin et& Tto
don layer of hydrophifc coBdd binder to diver halde expressed as equlvalem amo^
EP 0 657 297 B2
g. h the range of 1:1 to 1(h1 , but preferabl/ for Gonlmuous tone reprodu^^
[0120] TliesiWefliafideemulskMis may twcoaiM or tine grain and can Iwpreferedtiy any of tttev^^
ccdures e.g. single jet emulslons,.dout)le jet emulsions such as Uppmann emulsions, ammonlacal emulsions. INocy-
anale- or tiuoether-cipened emulsions such as those descril)ed in US-P 2.222.264. 3.320,069. and 3.271.157. Surface
. Image emulsions may be used or Intemal bnage emulsions may be used such as those described in U&P 2.592.250.
3.206.313. and 3,447,927. If desired, mtxtures of surface and Nitemal bnage emulsions may be used as descra>ed in
US^* 2,996,382.
[0121] The silver haRde particles oTthe photographic emulsions may have a regular oystaRlne form such as cubic
or octahedral form or they may have a transition form. Regular-grain emulsions are described e.g. in J. Photogr. Sd,
Vbl. 12. No. 5, SeptyOcL 1964, pp. 242-251. The sHver haKde ^Ins may also have an almost spherical ftrnn or they
may have a tabular form (socaBed T-grains), or may have composite crystal foniis comprising a mbdura of regular
and irregular ctystalijne forms. The silver haMe grains may have a multiteyered sIriKitura h^
different liellde composition. Besides havingadifferentiy composed core and sheOthesihwrhaSd^
atsvdiirerent halde composifions and metal dopants inbetween.
[01239 The average size expressed as the average diameter of the silver hafide grains may range from (12 to 1.2
um, pf^eraWy between 0.2(mi and O.Bfun, and most pfeferaWy between 0.3juii and 0.6)m The size distribution can
be homodispeise or helerodispere. A homodisperse size distribution Is obtained when 95 % of the grains have
that does not deviate more than 30 % irom the average grain siza
[0123] The emulsions can be chemically sensitized e.g. by adding sulphur-containing compounds during the chem-
ical ripening stage e.g. aUyrisothlocyanale, aDyl thiourea, and sodiurh thiosulphata Also reducing agents e.g. the tin
compounds described In BE-A 493,464 and 568,687. and polyaiiikies such as diethytene triamine or derivatives of
amfnomettane-suiphorft: add can be used as chemical sensitizers. Other suitable chemical sensitizers are noble
nnelals and noble inelal compounds such as goM, plaihum, palladium, ftMumL rut^
of chemical sensitization has been described In the artide of RKOSLOWSKT, Z. VV^
chem. 46. 65-72 (1951).
[0124] The emulsions can also be sensitized with i)olyalkytene oxide derivatives, e.g. with polyethylene oxide having
a molecularweight of 1000 to 20,000, or with condensation products of allfyiaie oxides.and aTqihatic alcohols, glycols,
cyclic dehydration products of hodtols, aDcy^bslituted phenols, al^haticfarboxylic adds, aliphatic amlnes> aRphatic'
diamines and amides. The condensation products have a molecuiar weight of at Ieasl700, preferably of .
lOOa It is also possn>letocombine these sensitizers with each other as described IhBE^ 537,278 and 6B^
[0125] The silver haldeeinulslon may be sensitized panchniinalicalV to ensure reprodudi^
vlsibie part of the spednim or it may be orthochromaticaly sehsHized.
[0126] The spectral photosertsitMty of the siNer haOde can be adjusted by proper spectral sensHfzation by means
of the usual mono- or pdymethine dyes such as acidic or basic twines, hemicyanines, oxonols. hemioxonote, styryl
dyes or others, also tri- or polynudear methine dyes e.g. rtNxla^anines or neoc^anines. Such spectral sensitizers
have been describkl by e.g. F.M. HAMER III niie Cyaidne Dyes and Itelaled
Usheis, John WB^ & Sons, Now Ysrfc.
[0127J ThesllverhaRdeenKilslonsmaycontaintheusualstabilizeise4.homopolarorsalMikecompo^
vvith aromatic or heterocydic rfogs sud) as mercaptotriazol», simple mercury salts, sulphoni^
and other mercury compounds. Other suitable stabilizers are azaindenes, preferably telra- or penta4zalndenes.'es-
pedaPy those substituted with hydroxy or amino groups. Compounds of this Mnd have been described by BIRR in Z.
. WIss. Photogr. Photophys. Photod)em.47.2-27 (1952). Other suitable stabiSzers are l.a. heterocyclic mercaplocom-
pounds e« pheriylmercaplolelrazole. quateinaiy benzolhlazole derivatives, and benzob^^
[012q Asun^ofphotographicsBverhaBdeemulstonsandlheirpreparalionisqiveninReseardira
cember 1989, item 308119.
[0129] Pnx»sslhg of the image-wise exposed phdo^aphlc silver haBdeeinulsionla^
with an bnage receMng material accordb^ to the bnrer^ and is accomplished usbig an alkaline processfrig Kquid
havbig a pH preferably between 9 and ia The pH of the alkaSne processbig Iquid may be established using various
aHcaralanibns or mbdum thereof. PreferaU^
EPAr387925, EPAr39f7926. EPA397927. EPA398435 and IIS4>A632;806. A oombb
lr)g both a pk, above or below 9 or a combtelkm of alkanolamines whereof at 1^
havb)g a pk, of 9 or less may also be used as dischsed h the Japanese.patent appHcaSons laM open
nunAers 73949/61,73^3/61. 169841/61.212670K60.73950/B1. 73952/61. 102644/61,226647/63,229453/63,05^-
4.362.811, US-P 4.568,634 etc.. The concenlraOonof these alkanobmbies is preferably from 0.1 mol/l to 0.9 moW.
[0130] SuilaUedevetopbig agents Ibr the exposed sihwrhalMe are e.g.hydroqubK^^
IMone^ype devetopbig agents as well as p4nonomethylamlnophenol and derivatives thereof. Preferably used is a
combination ofahydroquinone-type and 1-phenyl-3-pyrazolklone-type developing agent wtterein Itis latter is preferably
11
incoporated in one of the layers comprised on the support of the phot^
3l)yiazoBdone-type developing agents Is disclosed in the potjfished EP-A 449340.
101311 According to a preferred eml»dlmentfor conUnuous tone reproduction a mlxhjre of developing agents com-
prising an o^Iihydn)xyt>en2ene..e.g. ^^l^'^j^JJ^JJ^;^^^
* SS^S!i!^rf^3i>yra'oSdino^^
5%withrespedtotheoKlihydroxyl)en2enecanbeusedOthertypeofdeveloplngagentssuitabteforTO^
WHh the present Inventton are reduclonese.g.ascorl)lc acid derivatives.
ID13ZI The dwelophg agent or a mixhire of develophg agents can be present In an alkaline processing solution. In
» U photographic material or the image receiving material. In case the developing agent or a mMure of developing
agenlstecontainedinthophotograpWcmaterialand/orimagereceivlngmaterial.theRroce^
an aqueous alkaHno solution that initiates and adivales the developrnent.
I0133J intheDTRpfoeessthephotographlcelernentlsdevelopedlnthepresenc8ofasih»erhalidesoh«ntPrefer^
used silver halldo solvents are water soluble ttOosulphate compounds such.as ammonium and sodhim thiosulphaie,
« j^ammonlumandallBnmetallhiocyanates.Olheruselulsllverh^^^
hthebook-TheTlieory of IhePholoffaphlcftocess- edited by T.H.James.4lhedl^^
sulphllte and uradLFurther inleresllngsiverhalidecomptexIng agents are .
alkanolamines, as descnlKsd in US4> 4^97.430 and US^ 4,355.090. 2-mercapHAenzolc add derivatives are de-
scra)ed as sih«r haBde solvents in IJS^ 4;297.429. preferably combmed with alk^^
20 alkanotanunes-Dlalkylmethylenedisulfonescanalsobeusedass^
10134] The sflverhalide.solvert Is preferably presert in the processing »lulfon but may ^
Sl^S^tSlISllteJtotoi^raalerW
e.g!X^ published unewrnined patent applications no. 15247/59 and 271345W3. US^» 4.693.955 and U&P
[OlSq TTw processing solulton for use h the production of black-and^(i4)ae photographs In se^^
■ cording to the present invention may comprise other additives such as ©.g. Ihlckeners..preservatives. detergents ag.
acetytente detergents such asSURFYNOLlHSUIVYNOL465.SURnrNOL440eta an ava
Chemical Company. New YMc, .
30 101361 TheDTItproces8bnormallycarriedoutatateniperalurelntherangeof.10'Cto35«C.
101371 Fur1herdelaibSrtK)ulthebladMin*i(i*iteinRprocess^
fenage receiving materfab used therein are described ki Research Disclosure November 1976. Hem 1516Z
[Olsq ThepresertiWentlonwiBnovifbeiluslraledlylhelbDowlngexamplesw^
ratios, perwntages and parts are by weigM unless otherwise specHied.
• Preparation of photographic element for use In the DTR process
[01 39] A gelafino silver haBde emulsion was prepared by stovuly tunning with slbring an aqueous solution of 1 mole
of sflver rttrate per liter into a gelatine solution containing per mole of sBver nitrate 41 gof gelatin, 1.2 mob of sodium
(Woride, 0.08 mole of potassiuro bromide and 0.01 mole of potassium Iodide.
[0140] The temperature during predpitation and the subsequent ripening process lasfing three hourawa^
loi41] B^ore cooHng, shredding and washtog 214 g of gelatin were added per mote of silver haBde. Tlie washed
nowiles were raoBen and another 476 g of gelatin were added per mole of sihrer haBde during the ch
After ripening 285 g of gelatin In the form of a 20 X aqueous sohiOon were added to the emulsion per mole of silyer
haHde as vrcU as hydipqutnone in an amount such that after coating 0.9 g of hydroqulnone were preset
1-phenyM,+dinethyl^3l»yiazoWlnone In an amount such that OJtl g thereof urere present per m?. The emulsion was
coated at one side ofasubbedwaler^esistant paper support consisting olapaperhavingaweigMrf
at berth sides vrilh a polyelhylene stratum at a ratio of 20 gAr? per side.
[0142] The emulsion was coated In such a way that an amount of sifver equivalent to 1.5 g of sHet nitrate was
appBed per m2. The amount of gelatin corresponding therewith b &93gftn2 since the geblln to silver nte^^
ratio was 5.97.
- Preparation of image receiving material for use inihe DTR process and containing light Interference pigments
[M43J One side of a doubtestde subbed transparent polyethylene terephthabte support haw
12
EP0 657297 B2
mm was coated after coiona frealmenl.at a dry coverage of 25 gftn? of gelatin and 13 ghi? of interference pigment
from the folkming coating composilion:
cartx>xymett)y1 cellulose
12 g
gelatin-
385 g
3 % aqueous dispetsion of colloidal AgiS-NiS nudel
14 mi
4 % aqueous solution of formaldehyde
12 ml
80 g
pigment and 8 % of gelatin
12.5 % solution of saponine in ethanoVwaler (2(V80)
20 ml
[0144) TIteolher side of said support was coated mlh the abora mentioned image^ecehrf^
silion. with the driterence however, thai the bhie mte^
nient was replaced by yellow interference ptgmeni IRIODlNE 9231 (tradename).
- Prtoting of the image recehring malertal with pattern of graphical and numeifcal intbrnralion using
inic
[014q The printing of said information carried out in the badcground area having a yelow color (on observation
in rellection mode) due to the presence of said interference pigment IRlOIilNE 9231 (Iradenamo).
DTR-image formation
[01461 The above defined photographic element viras image-wise exposed in a reflex camera to obtain therein a
photograph (portrait) of the passport owner.
[0147] The ptx>to4xposed element was pre-inoisteriedw^ a processing liquid as defined hereinafler
[0148] Thecontacttimeoflhepholo^cposedelementvvilhs^dBquidwasesecondsbeforebemgpressed
with the Image^eceiving material at the bluei)igrnert side as defined above. The trans^
COFOrPROOF (registered trade name of AGFA^BMERT IIV) ^ CP m The trans^
onds. In the image-receiving layera positive'bladtand^vhile (sflverbnage) portrait of the photographed person was
obtained.
-Composilion of the processing liquid:
[0149]
hydnsQfethyl cgHuIoso
1.0 g
ZOg
45.0 g
NaAQs
14.0 g
KBr
0.5 g
1-Phenyih5Hnena|>to4^razole
0.1 g
1-<3.4«icM6rDphenyi)-1H4etrazol&6«lol
0.02 g
45.0 ml
aaomi
Waterupio
.11
(0150) VVhenviewedindaxngMunderananglaof90*lrirelledlonrnodBthecolororthenorH^^
tlie poriraR ChspecSon at ih9 front side) Witt bjue diie the presenca of unii^
typeEC1408-BIJJE(iidJMiariie).ln1littlraiisriilsshintiiodelliecokirhlliatl>a<kg(ourKla
yellow at this front side and bhie atthe rearside.
[0151] (>^copyIngtheobtaIneddocurnem««hacoloroopier(CANONaC500)l^ •
the portrait vwrereproduced grey {yellow plus blue) having the blue prhtedgrap^ .
pignent with poor contrast thereon.
13
EP0657297 B2
EXAMPLE 2
• Preparation of bnag»fecei\4ng element for use in
101521 Alransparempol/vinyichlorideslieethavingatliiclaKss
one side wiU) the tbOowTng comixsilions for fonnhg a subbing layer and nxxdanting layer respectively:
aqueous dispersion of blue PAUQSECURE ^ EC 1408 (badename) contalriiiig 30 % of said blue
pigment and 8 % of gelatin
ingredient A 40 % solution dispersed In aqueous medium
5 % solution of sitoxane con^nd in etttanol
1Z5 % solution of sapodne in ethanoVwater 2(VB0
4g
200g
250 ml
125 ml
20 mi
10154] Ingredient A is a polyester-pplyurettiane iiaving ttie same Ommlal composition as descraied h U&P
4,902.593. column 2, lines 64^ and column 3. Ines 1^.
[01551 11wcoatfeigcompositionwasapplledcaatedatadrycoverageof0^gM2ofgei^
2: Coating coropositibn of the mordanting la:
mordant M (20 %solu8on)
saponine (12 %) and weltbig agent W (5 %) in water
aqwous4%sohiUon of formaldehyde
20g
250 ml
32 ml
^0^i
» composition as described in US4>
[0157] Mordant M.on the basis of an epoddlzedcationlcpolyroer has the Si
4,902,593, column 7, rmes 1442.
[0158] The coating composition was applied at a dry coverage of O^gMi? of gelatin.
sieon, wHh the difference hounrajlul the blue interference pigment RAUOSEC^Et^^MoTltadN^r^^
inent was replaced by yellow iiilerfefence pigment IRIOOINE 9231 (traden^
IP16HJ TIwabovedeiinedtnugB^erKhringmaterialwasprocessedincombina^
transfer material as described h the Exampb of U.& Pat Na 4^.645, which mate^
thereon a porbal The exposed material was kept for 1 minute bi Gonlaclwlth the above
terfai alter bebig led through a dlAjsion transfer apparatus COPYPfiOa^
Bet^lhavhghiblraythelbllowlngbasieiTOeessIhgllquid: ' '
sodkimhydmoddo
25g
sbdhimorthophosphate
25 g
r^dobexanediniethanol .
259
2,2* methylpropylpFopane did
25g
N^thylbenzeneiiyridinium cMorlde
0.5g
distilled water up to
1000 ml
.IQ161] After leaving the processing tray the Imagefeceivhg sheet was led through a second^
aqueous solufcn of the already rnentloned wetting agent W corresponding wi^
noxyKCtVCtVOVH and potassium Iodide (ref. EP 0250657).
IPie) Aflerdryingthepri)cessedsheetmaterialitvraslaminatedasdescribedinlfS^4,9^
.14
EP0657297B2
I.D.canl.
EXAMPLE3
[0163] The interference pigmentsnwntioned in EXOT
respectively instead oT ih the subbing layers of an image^eceMng material suHed for use hi a dye diffusion transfer
process.
- Preparation of the imagfrfeceiving element
[0l6ti A transparent polyvinyl chlorkle sheet having a thickness of 0.100 mm was after corona treatment coated at
one side vrilh the following cornposHiorts for fonning a subbing layer and m«
1. Coating composition of the subbing layer
gelatb) 2pg
lngrediBntA40%soluliondi5persedinaqueousmedium 250ml
5%solutioriofsiloxanecompiDundlhethanol 125rol
12.5%solutk)norsaponinelhelhanOlAwater20raO 20ml
[01661 The coating Gompositibn was applied coated at a dry coverage of 0.4 gftr? of gelatin.
£ Coating composition of the front mordanting layer
[01671
gelatlh
12g
aqueous dispersion of blue PAUOSECURE type EC 1408 (tradename) cpnia
iiriihg30%ofsaidblue
100 g
pi^nent and 8% of gelatin
mordant M (20% solution)
250 ml
saponine (12 %) and wetting agent W (5 %) in water
32 ml
aqueous 4 % solution of formaldehyde
10 ml
3. Coatlhg composMion of the rear mordanb'ng layer
loiiq
gelatin
12 g
aqueous dispersion ofyellowlRIODINE 9231 (tradename) cont!
gelatin
iining30%ofyellowpignieritand8%«>f
100 g
mordant M (20% solution)
250 ml
saponlne (12 %) and wetBng agent W (5 %) in water
32 ml
aqueous 4 % solution of formaldehyde
10 ml
[0169] The coating corrqwsition was applied at a dry coverage of 0.9 g/h|Z of gelatin, and 1.3;^ '
EXAI«PLE4
[0170] Example 3 was repeated with the difference that the SgM ihlerlerence pigments were applied unifoimly in a
gelatin top coat covering the mordanting layer. The dried lop coal contained 05 gftn? of gel^
ference pigment at each side of the bansparenl support
15
EP 0657 297 B2
Oarms
1: A security document wtilch contains at least one layer, a support, at least one image or pattern seiying for identi-
fication purposes and at least one l^ht inteiference pigment distritHited unifonnly or pattenrwise in or on at least
one byer of said document, characterized in that said support is a transparent dear resin film support or such
support containing small amounts of pigments or voids opad^ing to some degree the support, with a visibte light-
bloddng capacity less than 50 % and In that said document by the presence of said light interference-p^ment,
has at least In certah areas a different color when viewed with Itght transmtted by the document in compart
wHhSght reflected by the documenL '
Z [)ociimem according to dafenl. wherein s^ document contains mbdures of differerdDghiin^^
3. Document according todaim 1 or 2, wherein in said document dillierent Bght interference pigments are present
uitifbnnly each in a dHfereM layer at opposHe sides of said support
4. Documentaccordb)gloclabn1or2,whefeiDinsaiddocumentdiirerentfiderferencepbrnente
each in a difi^em layer at bpposite sides of said support and at least one of said layers has undemeatt^
on top a pattern Gon^idng common Bght^eflecfing pigments antfor dyes having no li^
5. Document according to plabn 4, wherein said pattern has substantialV the same color as the color seen in trans-
inssion mode or reflection mode of the nght interference pigments combbied with s^
& Document according to 1 or 2, wheren pattenvvrise piMed inteiference pigments are present underneath
andfty on top of a pattern containing common Sght-refleding pigments and/br dyes having no light interference
properties.
7: Document according todaim lor 2, wherein a pattern of printed interference pigments is present underneath andf
or on- top .of a layer or support having a. color substantially the same as the color a said pattern containing said
interliefenoe pigmenis when seen In reOeciion cr transmission mode;
8w DoGumentaocoidbigtoclalmlor^wherehpiihteitlnfDmnalionconlalningQgMH^
underneath pijnted ihfonnnation containing normal light-absort>b)g and BghMdIecilhg pigments Rare present at
one side of a transparent support TS and at the o8ier side of said support saU nomKri 'pigrnenls R are prin^
a pattern bdhg owerpiniled at least partly by a pattern contabiing light ihteiferenoe pigments B.
9. Docunrantaccoidhg to dahi lor 2, wherein inlbrmatibn containing light interference plg^
lianspmnt support TS is patteinwise printed over (1) a ^xmmon* light refleding^i^^
color Is complembntaiy taihe color of said pigments A when seen with reflected 1^ (2) a pigment pattern com-
pfislng'coinmon'HghtrenecilngpigmertsRI mbced with colored fluorescent or phosphorescent pigments or dyes
RF, and at the other skte of said support TS hterterence pigments 8 are printed over ('I") a metallic pigment
(aluminium or bronze platdets) patim M. (2!) a pattern comprising HgM reOecth
complementaiy to the color of saU pigments B when seen with lellecled nght 13) a pat^^
ptgments M mbted with "^nxmr 1^ reflecUng pigments 1%!. having a oolw
ptgmenls B when seen wUi-reffecled Rght
10. Doctpafit according to ai^ of the preceding datns, whereh saM documem contaMs ^
image or patteniL
11. Document accoiding todaim 10. vifheiein said (jhotograpMcallyq^^jD^
ofdevetopedphotosenslUvesilverhalldediredlyinalight^nslilveniiie^
recehffeig material
12. Document aocoidlng dalrn 10, wherein said photographically oMaM
• anon-lnpactprintlngtecliniqueihwhlchanalogordigltalhputslgnalsfo^
signals oiiginaling from a visbie or^ihaL
13. Documertaccordingtoclani10.whera'nsaidphotographicallyproducedimageorpatiemisfomiedbythesil^
satt diffusion transfer process ih an bnagenreceiving material containing an bnage receiving 1^
EP0657297.B2
velopment micleL
14. Document accorting to dann 10. wherein said pholographicaily produced image or pattern is formed by a dye
diffusion transfer process in an image-receiving material containfcig a mordant for a dye Iransfefied
wise exposed and developed silver haBde emulsion material.
15. Document according according to any ol the preceding claims, wherein said intefference pigments are mica pbte-
lets coated with a metal oidde,
IB. Documem according to claim 15. wherein said mebl cndde is selected ihm t^
FePjandCTjQj.
17. Documentaccordingloclata15or16,>>«>er^saldplaleletscoatedwithsaidinelalox^
ofcaitXH).
18. Doctm»r»laccordlf«toarvofclaims 1510 17.wherelnsald platelets havealar^
and200|un<
19. Documertaccordlngloarvpfclalms15to18.wherBihlhelhldoiessofsaldWerl^
andO-Spm.
2ft. Document accordiiflto any ofthe preceding clatas.v»hereh said ilghlWeiferem^
document in a coverage of 0.3 g/kn? to 10 gftn?.
21. Document according to anyofthe preceding cla6nris.v*erelns^ support has beencoa^
with a tWn metal oxkte lay er or has been coated with said metal oxide layer on top of a coating or
right intefference pigments and/or coating or pattern of BgM reflecting pigments having no light Werference prop-
erties bkbig care that the thus coated metal radde layer has substantially the same or color compte^^
color of said pattemwise applied pigments.
22. Documentaocordhgloanyoflhe preceding dalms^wherebi on the froriland^orrearsideofsaM
neath andfer on lop ol unHbnnnly or patleiiiwise applied brterleience
ralnbw ellW Is preserit, cortainSng therefor BgM iBlleclIng pl^^
rim of the rainbow cotors the same as the normal or compleinenlary color of said ligM Merfi^^
23. Document according taclabn 22. wherein one or more of the rainbow colors Is obtained by printing metaDic pig-
• 24. DocurnenUccordngtoclata22.wheretofluorescentorphosphorescentp|gmenlshavebeenmixedvi^
interference pigments and/orwith said light reflecting pigments ghfing said rainbow effect to the guiDoche pattern.
25. Documertacco(dingloclaim22.whereinsaidraihbowelfectbobta^
with a nuorascent or phosphorescent ptgmenL
2& Documentaccordlngtoclabn22,whereto(a)bMluorescentpigmert(s)ls(are)mixedwllhoneof^
pigments and^or rnlxed wBh said Rght Merfeience pigments whereby when«^^
resoeni ptgment(s) show(s) Bght of two different wavelength ranges one of which Is dilferent ftom the wavelengtti
range of Ihe colors of said light reflecting and interference pfgroents v^ these are ofaseived under yAsitito light
oonditioos and the ottier corresponds witti the nonnal or complemenlaiy color of said tnterference pl^^
27. OocuinenI accordilig to aiy of the preced'mg daims; wherein a^guiloch^
perfect see4hrDughptlnlr^er on the ftort and rear sWo of said support and vvherein the Bgtrlreflecl^
showing rainbow eRect prinied at one side have eoim
have at orwsWe a colof the saine as the normal cotor of saw B^interferm»pfemenls, and wherein parts of
sM gulloche pattern irit either side cover at least partly a photograph or printed pa^
pattent.
28. Document according to any of the preceding dalms. wherein said document contains printed patien» at least
17
EP 0657297 B2
partly covering eachother and said patterns each contain (a) diiferenl Ogiit interference p!gmenl(5) the construction
and composition or which is siKd) tint the/ siiow a dlHerem color shift when ^
angto. and wherein the printed pattern nKKt reim>te iiom the obsener has
printed thereon wliich Is more transpaent, hereby obtaining a document that shows in the overlapping pattern
area a continuously changlrig color shift by. changing gradually the observation angle.
29. Document according to any of the preceding dabns, wherein said document is in the form of a laminate.
■ 1. EinSlcherheitsdolaiment,daswenigstenseinoSchicht,elnenTrager.wenkpten^
dienendes Bild Oder Muster und wenigslens efti glelchmaBIg Oder mustermaBig in oder auf wenigstens einer
Schleht dieses Doltuments verteiRes UcWinteiferBnzplgmenI enthalt. dadurch geKenreelchnet, daB derTriger
eindurchsicMigerMarerHaizfilmlragerodereln soicher, Mehe IMengen denTragereMgennaBen trObmachende
Pigmenle Oder Kolriraumen enlhdtenderTrager mtt eiher Uchtundurc^^
50% isl. und dadurch, daB das Dotamjcnt aufgnmd der Einarbeilung des Uchtlnterfe^
nrit dwch das Dokumerd durchgelassenem UcM hi Verghsich mit dner Betrachtung mit durdi das Dolcument
refJeMiertem Ucht wenigstens In bestimmten Bereichen eine unteischtedBche Farbe aufweist
2. Doiojment nach Anspruch 1, dadurch gekennzelchnet, daS das Dokument Mschungen aus verschledenen
Uchtinlerferenzpigmenten enthalL
3. Dokument nach Anspnich 1 oder 2. dadurch gekennzelchnet, daB in diesem Dokument verschiedene Uchtin-
lerferercpigmenle je glefchmaBIg in einer unterschiedlichen, an den gegenuberllegenden Seiten des Tragers be-
findikihen SclihM enthalten sind.
4. Dokument nach Anspnxdi 1 oder 2, dadurch gekennzelchnet, daB in diesem Dokument verschiedene Uchtbt-
terferenz^Hgrnente je gletehmaBlg in einer unterschledlfcheni an den gegenOberiiegenden Seiten des Tiagers bo-
lindnchen Schteht enthaRen sbid lind wenigstens eina dieser Schfchlen auf deren Unterseile undAxler Oberseito
ein Muster ntit OWtehen lichtreflektlereriden Pigmenten unidtoder l^rbstoffen ohne UcWintertiBrenzefgenschaften
enthSn. '
5. Dokiimenl nach Anspruch 4. dadurch gekennzelchnet. daB das Muster wescntDch dieselbe Farbe hat wie die
Fari)e, die bei der Durchslcht- oder AutsKhtbetrachtung der Lfchtinlerferenzp^nte in Kombinatkm mit diesem
Muster beobachtetwird.
6. Dokument nach Anspruch 1 oder2, dadurch gekennzelchnet, dafi unter und^oder auf einem Muster mit DbHchen
llchtreflektierenden Pigmenten und/oder Farbstolfen ohne UchtMerferenzelgenschaften mustennaBig gftJuucWe
Interferenzpigmente enthaRen shd.
7. Dokument nach AnspnKh 1 oder 2, dadurch gekennzelchnet; daS uhter undfoder auf einer SchkM oder einem
TragereinMustervongednicklenlntBrferenzp|gmenlenenlhallenlsl.woW
Musters aufweisL
8. Dokument itach Anspruch 1 oder 2, dadurch gekennzelchnet, daB gednickte InformaOon enthaRende Uchtin-
terferenzpigmente A, unter denen sfch gedruckte faifonnaflon enthaltende, nomiale, Dchtabsorblerende und Rcht-
reflektlerende.Plgmenta R beftnderv aufeher S«e elries durchskltligen TrSgers TS enti^
anderenSelte desTragers die nonnalenPigmenIs R heinem wenig
' mentaBenthalteikte Muster Obenlrucklen Muster ge^^
9. Dokument nach Anspruch 1 oder 2. iladurch gekennzMchnet, daB Intbrmalkm enttiaHende Uchtinterferenzplg-
ments A auf einer Seite eines durchsfchUgen TrSgers TS mustermaBig Dber (1 ) eInem "OWicho* Bchtreflektlerende
pigmente R1 enthaRenden' Muster, deren Farbe bei AufsteMbetrachtung mH der Farbe der Pigmente A kornple-
meniar ist und (2) eineni Pigmentmusler mt 'ubiKhen* IkMreaektierenden. mit ge^
phosphoreszierenden Pigmenten oder.l^rtistofl^ IV vennlschten Pigmenten R1 g^
anderen Seite des TrSgeis TS Interilerenzi^gmente B Qber [f) dnem Metallpigmente (Alumihiuno- oder Bronze-
EP 0657 297 B2
- planen)enthallendenMusil^M,(2)e&)emMuslernMlic^^
tung eine mft der Faibe der PSgmenle B ton«>lemenlare Fa^
menteh M. die mtt "honnalen- Bchlrene^^
der Pigmente B kocnplementare Farbe airiweiseii. vermischt sind. gednicM weiden.
10. Ppkument nach irgendelnem der voistehenden Anspriiche, dadurch gekennzeichnet, daB'das Dokument ein
fotograflsGh eihattenes BiM Oder Muster enthaL
11. Dokument nach Anspnidi.10. dadurch oekennzeichmt. daB das Ibtogialisch.ertialtene Bild Oder Muster unter
AnvrendungvorienAwfcAelleinfiDloefnpfindl^^
Oder In eiiiem nchtuneflipfimllKhen Blktempfongsrnateibl
12. Dokument nach Anspnich 10, dadurdi gekennzeldinet. daB das fotografech ertiaRene BiW Oder Muster durch
eine anschlagfreie Drucktechn*. be! der anatoge oder digilale. den Druelcvofgang stetiemde Ehigangsslgnale von
durch eine SKhtbars Vbriage ernlltierten Fotosignalen staininen, etzeugt wM
13. Dokument nach Anspmch 10, dadureh gekennzeUAmt, daB das fotograll!«:h erzeugte BiM oder Muster gemaB
deinSiR>ersalzdiRusfonsut>erltagiingsve^^ Bikleinpbngsmateilal mrtebierEiitwfcklungskehne en|-
haBenden BiMempfengsscNchl eizeugt wfcd.
14. Dokumemnad)AnspruGh10,dadurchgekennnichnel,daBdasfbtogrBlischeizeugt^
chend einem FarbstQfldiSiisR)nsOI)eiliagungsveffahrai In einem BIMempfangsmateiial. das ebi BeiznOtei fur el-
nen von einem biUmlBig beBchteten und entwickelten Slbeihakigenklennilshinsmaterial Qt)ertragenefl Fartstoff
enthalt, eihaltenvrird.
15. Dokument nach fegendehem der vorslehenden Anspruche. daduich gekennzeFchne^ daft die Interferenzplg-
mente mit einem-MetaUoxSd Glieizogene MOcaplatlen sind.
16. Dokument nach Anspnich IS, dadurch gekennzeichnet daS das Metalkndd HO,, ZiOj, Fe^jOj oder CTjOj 1st
17. DokumentnacbAn5piuch15oder16.dadurchgekennzelchnel,daBdtomftdemMetalk»idfil)eizogenenPlat^
ehe zwete, aus KoMenstoir l)pstehende ScMcM halien.
18. Dokument nach bgenddnem derAnsprOche 15 1)i5 17. dadurch gekennzeichnet, daft der H6chslobeifl9chen-
durchmesser der Piatten zwfechen 5 und 200 |un negt.
19. Doloiment nach ftgendebwm der Anspiiiche 15 bis IB^iiadurch gekennzeichnet daft die Starke der Interferens-
pigrr«ntezwischen0k1und0.6)unllegL
20. Dokument nach hgendetnero der vwstehenden Ansprikhe, dadurdi gekennzeichnet, daft die UcMlnleiferenz-
pigmente b eihem VeihSltnis zwischen 0.3 g/hi? und 10 gM2 Im
21. . Dokument nach bgendeiiem der vocstehenden AnsprOche^ daduich gekennzeichnet, daB der Tr3ger entweder
direkt durch Aufetauben mtt einer dOnnen MelalkixklschkM Oder oben auf eiher Schlcht Oder dne^
den Uchtinterferenzpigmenten und^oder oben auf ekwr Schfcht oder ebwm Muster mit ncMrelleklierenden
menlen ohne LkMkiterieniizelgenschaften mit der IMdalkx^^
daft die so au^etrageneMetalkBddschkMwesentlkjidiBselbe Farbe «fe die Farbe der litm^^
ten Pigmente oder eine damit icDRiplenienlare Fartw auAweisL
- 22. Dokument nach bgendetnem der vwstehenden Ansprik:he. dadurch gekennzeichnet, daB sfch an der Vorder-
selta undtoderder Rflcksdte des Tfagers unter und^oder auf giekdmaBIg
terfeienzpigmeiten ein gediuddes Guiltodiesiifchmuslermit Itegenboge^
zum &halt dieses Bfekis IfcMiBlleklierendB, den (UgenbogeneiibM auftm
odermeiirRegenbogenbibendieseibeFaibeislbmsMwia die nonnale Oder kmplementSraFarte
23. DokumentnadiAnspiuch22,dMun:hgekennzeichnel,daBelneodermehritegenbogenfarbendurchAuid^
ken von Metalpigmenten.erhalten werdea
EP 0657 297 B2
24. DokumenI nach Anspnich 22. dadwch gekennzeichnet, daB fboresziefiende oder phosphoreszierende P^men-
le mtt den UchOnterferenqiigmenten und^oder den DchtreOekiiaenden Pigmenten venniscM sihd und dem Guil-
lOGheniusler dadurch den RegenbogenelTeM voteihea
25. Dbkument nacK Anspiuch 22, dadurch gekennzeichnet, daS der RegenbogeneffeM durch Auldnicken eines
durchskMigen, mit einem fluoreszierenden oder phosphoreszterenden Pigment geladenen Lads eihatten wird.
26. DokumemnachAnspnidi22.daduiGhgekenrizdchiiel,daB(eln)Ufluoreszierende(^^
Dchtreflddierenden Pfgmenls und/oder ma den UtMnierfmnzpigmenten vermischt ist (dnd). vwbei das (die)
|i|ucreszenz|dgment(e) bel BeikiAiiQ mit Ulba>MetllkM Uc^
weist (auAMelsen), von denen sfcli emer be! Belraditung unter sichtliarem Ucht der IkMrefleldierenden Pigmente
und Uchtihteifaenzpigmente vom yfelleni>eretoh der Farben der Ikhtrenektimnden Pigmente und UchUnterfe-
renzpigmentB unterscheklet und der andere der nonn^ oder komplenienl3ren Fart>e der Intefferenzplgmenle
entspricM.
27. [>okumeht nach Irgendeinem der vocstehenden AnsprOche, dadurch gekennzeichnet, daB ein Gidlkxhemuster
mit RegenttogenefTekt in perfeMem Durchsfchtdnickregister auf der Vbiderseite und ROcksdte des TrSgers ge-
dnkM wM, die an efner Seite gedruckten, Ifchtreffektierenden, den RegenbogertefTeld aufwelsenden Pigmente
eine nut der Fart3e der gednickten Pigmente komplementSre FaitM. aber auf efrier SeHe eine der ncrmalen Fari>e
der Uchtbtterferenzplgmente entsprechende Farbe aufwelsen. und Te3e des Guilochemusters an beMen SeBen
wenlgstens teBwelsd eIn UchtbOd oder gednjcktes Muster bedecken oder ein gedmcktes Muster vem>Bslandlgen.
28. Dokument nach irgendeinem der vorstehenden Ansprikhe, dadurch gekennzelchnel, daE das Dokument ge-
dmckte Muster, die wenigstens teilweise einander bedecken, und Jedes dieser Muster (etn) unter5chledliche(s)
Uchtinterferenzpigment(e) enthalt, das (die) so stniktuiiert und zusammengesetzt ist (sind), dal^ es (sie) bei Be*
trachtung unter demselben Beobachtungswinkel eine unterschiedSche Farbverschiebung aufiweist (aulwelsen),
und dali das am weilesteii vom Beobachter entfemt liegende gednickte Muster ein hoheres De^iweimogen auf-
vre&t als das darauf gedTuckte. durchsfchtigere Muster, wodurch ein Dokument. bei dem unter stufenweiser fn-
derung des Beobachtungswinkeb im iSwrlappenden Musterberek^h ehe Sid) ununteibrochen andeinde
schleiHing festgestellt wjtd, ertiailen wird.
29. PpkumentnadikgentetoemdervoistehendenAnspiOdie^dadunrhgekennzeldme^daBdasOokumembiFomi
dnes Laminats vorliegL •
1. Un document de s6cwit6 quf contient au moins une couche. un support, au moins une Image ou lin motif servant
d des fins didentlfkatton. au moins un p^pnent d%iterference lumbieuse disbibud uniformiment ou sous fonne
de motif dans ou sur au moins une couche de ce document, caiaderisfen ce que ce support est un support
d^iri film de r6slne dair ou un tel support contenanl de peliles quantitte de pfgnients ou de pores opadiiant le
support a un certain degi« et possMant une capadtfrde bkxage de hin«re >risii>le inf&ieure
.qi» ce document, suRe a la presence de ce ptgnwnt dlnteff^rence bmlneu^
zones une couteur (Sir^rehte k)(sq(f on robserve A b himlfirB Iransmbe par to docunert par
robsenei la htmHrerifltehie par la document
£ DoGumentseh»laravendkath)n1,Gaiacl«rlsCenceqinicontientdesm6langesdediir6^
ffirencB hnnlheuso.
3. Docimienl&ek>nbrevendkalfa)n1ou2.car8ctMs«encequadansGe.doa^
rence hjmbieusft sont ehacun presents ds maidte uniltinne dans une eoudie dill^^
support.
4. Documenrsekmlarevendkatkmlou^caFacteHsiencequedanscedoramemiHIierBn^
rence som chacun presents de maniire unifonnei dans une cdudie dilfdwte des c6t& opposes du siq)pai^
. moins une decescoudies a au^lessouset/buau^essusun motif contenant des pigments et/bucotorantsoid^
nakes relKchissam la' hfflilere et ecempts da propitfitfe dlntert&enoe
EP 0 657 297 B2
5. Dw»nentselonbrevemiicafon4.caiactM56enceqiwooinoW
couleur vue en transmission ou en reflexion des pigments (TinteiKrence lumineusa combines avec ledrl motif.
6. Document selon la revendicalion t ou 2, caractirisi en Co que les pigments dlnleiKfence hnprimte sous fonne
de motif sont pffcents au-dessous et/ou au-<Jessus (Tun motif conlenant des pigments el/ou colorants ofdinaires
ii£(Kcli(ssant la himlife et exempts de proprifitfo dtiterKrence lumineuse.
7. Documem selon la revendtettonlou 2. caraclMsi en cequ^mnKitifde pigments d^
prtsent aiHlessous ettou aiHlessus drune oouche ou d^n support possMart essentieleme^
que la (XHileurdudttnmlifcontenantles pigments dinlerfirenoelocsqi/onrabseive en
8. Document selon la revendlcation 1 ou 2, caractirise en ce que de Finfonnalion Imprimte contenant les pigments
dlnleif £rence lumineuse A au-dessous de laquette est bnprimte de Flnfonnation contenant des p^ments ordlnaires
R ab50rt>ant et r^ilteMssant la lumiire est prteente sur un odt6 d^m support transparettt TS et sur rautre
ca support lesdits pigments oMinabes R son! imprimte dans un motif qui es^
par un motif contenant des pigments dinterftrenoa bmineuse B.
9. Document selon la revendicationiou 2, caiactMsi en C0 qua derinromttliDnointenart
f£renc8 lumkieusa AsuruncM tfUnsupport tansparentTS est hipiimfe sous fonne d
motif R1 de pigmert ''bniinabe^ riiiteMssant la lumiei? dort b c^
pigments A lorsquTon les o|)seive d la lumt&re rgfKdtte, (2) dbn nntif de pigment com^^
dinaires* R1 rtfikliissant la lurttiire et m^langte avec des colorants ou pigments RF cotor^ ftuorescents ou '
pliosptiorescents, et sur l^ulre cote dudit support TS des pigments drinteif£rence B sont imprint^ au^essus (17
d^motifMdepigmeMro£tallique(pailiettesd'aluniiniumoudel)rDnze),(20d^nx>tifconq^^ ■
R2rffl6cliissartbhm4te avec une codeurcompMmenlalreaia couleur desdibpigm^
& la lumike reflidfe, (31 d^m motif comprenant des pigments mitalliques M m^iangte avec des pig^^
nake^ R2 i«fiediissant la iumiere avec une couleur compKmentaire a'la couleur desdit^
les olseive a la lumlire rifltehie.
10. Document selon Tune quelconque des revendications precMenles. caract&Isi en ce quH conBent une bnage
ou un moDf obtenu(e) par vofe photograpidque.
1 1 . Document selon la revendlcation 10,.caract6ris6 en ce que cetle image ou ce motif obtenu(e) par voie plwtogra-
phique est produit(e) au nwyen d^m l)alog£raire tfaigem piwtosensilile d«velopp« dl^^
sensible a la KimiSre ou dans un mat&fau ricepteur dlnage non-sensble i la iumiere.
,12. Document selon la revendlcation 10. caract£ris« en ce que cette image ou ce molif oiitenu(e) par voie photogra-
phique est produit(e) au moyen d^ine technique d^npression sans hipact dans laqueUe des signa.ux d'entrte
digitaux ou analogues pour comrnander cette. bnpression proviennent de photosignaux proven^
vtsflMe.
13. Docimientseibnlarevendication10,caraGliris6encaqueoellsbnageoucemo<ifproduil(e)parvoie
plikiue est tiDnn£(e) par la prDc£d6 de transfbrt de set tfargent par diilbslon dans un mal^
contenant une cpuclie iteepliloe dinngecomprenantdesgennes do d«vek«^^
14. Document selon la revendlcation 10, caract6rts< en ce que cette knage ou ce motif prDdidt(e) par voie photogra-
phique est fbrm^e) par un procfidd de transfeit de cotoranl par diiniskm dans un mat^ re^^
contenant un mordant pour un colorant transf^rd d partir d^ matMdu d^muiSion & rtnlogfinure dTargent exposi
et ddvelopp^ sous fbnne dimage.
15. Document selon Tmo quelconque des revendications prMdentes. caractMst en ce que les pigments dlnt^-- '
faience sont des paHtettes mica enduites dTkin oxyde mitallique:
16. Document selon la revendicaOon 15. cmct6risi en ce quelVixyde mitaOique est dwb^
etOjOj.
.17. Document selon la revendlcation 15 ou 16. caract&ts« en ce que les paRleties enduiles de roxyde m^taHique
sont reoouvertes dTune deuxiSme couche de cartxme.
21
EP0 657297 B2
18. ixwimertsetonrunequelconquedesrevend^^
de suface maximal enire 5 el 200 jun.
19. Document selon rune quelconque des revendlcalkwis 15 i 18. candMsk en ce que P^paisseur des pigments
tfinterfef ence se sftue entre M at 0.6 pm.
.20. Document selon Pune quelconque des revendkatfens prtcMentes. caract6ife6 en ce que les pigments dlnler-
(irence lumlneuse sent presents dans ce document i laison de 0.3 gArf i 10 gftn».
21 . Document selon Pune quelconque des revendicalfons pr&6dentes. eaiactfrisfi en ce que le support a &S endult
direclement par pulv6risalion cathodlque dTUne irance couche dToxyde mfitalBque ou a et§ enduil de cctte coucte
d'ocyde maaDique amiessus d-un enduit ou motif desdits pigments dTnterierence lumineuse et/ou d^in endult ou
motif de pigments r6fl6chissant la lumiere ne possMant pas de propri6tes dinlerfefence lumineuse. veillant a ce
que la couc»>e d-oxyde maalBque ainsi ^pHquee aR essentteHement la men» couleur ou une couteor compte-
mentalre * celte des pigments appliqu&.sous Ibroie de motif.
22. Document selon Pune quelconque des revendlcalfcns prtc&Jenles. caradiilse en^ce que sur ie flront elftxi le
dos dudit support - aiKlessous elTou aiHiessus des pigments dinterfirenca appOqufis unifonntewnt ou sous
fomiodemotif-eslpf6sertuninolifenlignesguIloct>§esavecefr^arD«^
F«l6dilssart b luntoB procurant eel elfet de sorte qiAme ou pte
a la couteur nomrale ou conM6n»ntake des pigments d1nlerf6rence luml^^
23. Document selon la revendication 22. caractWsS en ce qu"un ou plu^is des couleurs arcr&nM sont dlitenus
en impifenant des pigiiienls mtialliques.
24; Document selon la re\widlcaBbn 22. caradMs* ence que des pigments fhiores?^
«6 melanges avec lesdits pigments dlntert&ence lumineuse etftw avec lesdte
procurant cet effet an>en<iel au mol» guBlocliS.
25. Document selon la revendication 22, caract«rts6 ence que Pelfetan>«H3elert
transparent charg^ dPun pigment fluorescent ou phosphdrescenL
26. Docume^tselonlarevendlcation22.caracttris«encequ^mouplusieutspigment5bMluoresc^
avec un des pigments rifKchtssaiit la tumHre el'ou m^langfe avec les pigments dlnterfirence lumineuse, ce(s)
pjgment{s) fluorescent(s) montrant - loisqufiKs) est (sont) («pose<s) i la lumiere ullraviolettfe - de la luml^re de
■ deux doniaines de longueur tfonde dtfTdrents dont Pun est cfiff^nt du domaine de longueur dVxKle des couleus
, desdHs pigments dTnterfSrence et retl&htesart la lunufre tofsquTon les obsenre sous des condi^
vte'ble et Pautre conespond i cehil de la couleur nomiale ou compKmentaire desdits pigments dinteifirence.
27. Document sekm rune quelconquddes revendications pric^dentes. caracterisft en ce qu'un motif guillocM avec
effet aro^n^iel est iinprfcn* on parfait reglstre depression transludde sur le frt^^
caracl6rfs« en ce que les ptgmoits r^fUchissant la lumiere prtsentant Peffet aroen^ et lmprime$ sur un c6t6
possMenl une couleur compl&nentafto par rapport aux pigments w^ninoes, mais poss6«tent sur un c6t* une cou-
leiir Identique i la couleur normale desdits pigments dlnterfierence lumineuse, et caractMsfr en ce que des
partes dudit motif guBtoeW sur diaque c6l* recouvnOTl au molns partienement une plwtb ou un mot^
Gompl&lenlunmolirimpibn& '
28. Dpcumentsekm Pune quelconque des revendicalions prte^dentes, caract£rfs« en ce que ce document contient
des molife bnprtmfe se ci)evauchant au mofris paitieDement et cheque motif contient un ou plusieurs pigments
drmieffbence lumineuse diff^nts dont la constniction et la compo««on sont teOes que les pigments prfeentent
un changemeni de couleur (Sff£rent loisqu'on les observe sous le mSme angle {f
ce que le molif impi»n6 qui ed le plus «ol^ de Pobservateur a un pouvot eouvrant pl^
imprimi IMessus qui est pte transparent, otitenant ds cette maniere un docunwrt qui pri^^
chevaudieinentdumolI.unchangeriienl constant delacouleurenchangeantgraduellememPangledrobservaU^
29; Document sekm PUne quelcohque des revendications pr^cedentes, caraclirise en ce qull est sous fonne de
EP0657297B2
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